02 March 1833; Constituted in the Regular Army as the United States Regiment of Dragoons.

04 March 1833; Organized at Jefferson Barracks, Missouri, with Colonel Henry Dodge, commanding.

15 May 1836; Redesignated as the First Regiment of Dragoons.

03 August 1861; Redesignated as the 1st Cavalry Regiment.

1883; Cavalry Companies officially designated as Troops.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as 1st Cavalry Regiment (Mechanized).

15 July 1940; Redesignated as 1st Armored Regiment (Light), and assigned to the 1st Armored Division.

20 July 1944; The 1st Armored Regiment was reorganized (2nd Battalion was deactivated and the remainder was reorganized and redesignated as 1st Tank Battalion).

01 May 1946; The 1st Tank Battalion was converted and redesignated as the 1st Constabulary Squadron, and concurrently relieved from assignment to 1st Armored Division, and assigned to the 15th Constabulary Regiment.

20 December 1948; The 1st Constabulary Squadron was reconverted and redesignated as 1st Medium Tank Battalion, reassigned to the 1st Armored Division, and deactivated.

27 February 1951; The 2nd Battalion. 1st Armored Regiment was reconstituted in the Regular Army, redesignated as 100th Tank Battalion and assigned to 1st Armored Division.

07 March 1951; The 1st Medium Tank Battalion was reactivated as part of 1st Armored Division at Ft. Hood, Texas.

15 February 1957; Inactivated (less "A" Company) at Fort Polk, Louisiana and relieved from assignment to the 1st Armored Division. ("A" Company concurrently reorganized and redesignated as Headquarters and Headquarters Company, 1st Medium Tank Battalion, 1st Cavalry.

15 February 1957; 1st and 100th Tank Battalions consolidated and redesignated as 1st Cavalry, a parent regiment under the Combat Arms Regimental System (Headquarters and Headquarters Company, 1st Tank Battalion redesignated as Headquarters and Headquarters Troop, 1st Cavalry.

02 March 1833; Constituted in the Regular Army as "A" Company, the United States Regiment of Dragoons.

12 August 1833; Organized at Nashville, Tennessee,

28 August 1833; Joined Regiment of Dragoons at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "A" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "A" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as "A" Company, 1st Cavalry (Mechanized).

15 July 1940; reorganized and redesignated as "A" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Reorganized and redesignated as "A" Company, 1st Tank Battalion with personnel from "G" Company, 1st Armored Regiment.

01 May 1946; "A" Troop, 1st Constabulary Squadron, concurrently relieved from assignment to 1st Armored Division and assigned to 15th Constabulary Regiment.

20 December 1948; "A" Troop, 1st Constabulary Squadron inactivated in Germany; concurrently converted and redesignated as "A" Company, 1st Medium Tank Battalion, relieved from assignment to 15th Constabulary Regiment and assigned to 1st Armored Division.

07 March 1951; Activated at Fort. Hood, Texas.

26 May 1953; "A" Company, 1st Medium Tank Battalion redesignated as "A" Company, 1st Tank Battalion.

15 February 1957; Reorganized and redesignated as Headquarters and Headquarters Company, 1st Medium Tank Battalion (Patton), 1st Cavalry, and assigned to 1st Armored Division (Organic elements concurrently constituted and activated.

03 February 1962; Reorganized and redesignated as 1st Squadron, 1st Cavalry.

02 March 1833; Constituted in the Regular Army as "B" Company", the United States Regiment of Dragoons.

29 July 1833; Organized at Sacketts Harbor, New York.

06 September 1833; Joined Regiment of Dragoons at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "B" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "B" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as "B" Company, 1st Cavalry, Mechanized.

15 July 1940; Reorganized and redesignated as "B" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Reorganized and redesignated as "B" Company, 1st Tank Battalion.

01 May 1946; Converted and redesignated as "B" Troop, 1st Constabulary Squadron; concurrently, relieved from assignment to the 1st Armored Division and assigned to 15th Constabulary Regiment.

20 December 1948; Inactivated in Germany; concurrently, converted and redesignated as "B" Company, 1st Medium Tank Battalion, relieved from assignment to 15th Constabulary Regiment and assigned to the 1st Armored Division.

07 March 1951; Activated at Fort Hood, Texas.

20 May 1953; Redesignated as "B" Company, 1st Tank Battalion.

15 February 1957; Inactivated at Fort Polk, Louisiana, and relieved from assignment to 1st Armored Division.

01 October 1957; Redesignated as Headquarters and Headquarters Company, 2nd Medium tank Battalion (Patton), 1st Cavalry; concurrently assigned to 3rd Armored Division and activated in Germany (Organic elements concurrently constituted and activated using personnel and equipment from the 7th Tank Battalion).

01 July 1963; Redesignated as 2nd Squadron, 1st Cavalry; concurrently, relieved from assignment to 3rd Armored Division, transferred (less personnel and equipment, which were transferred to the 3rd Battalion, 33d Armor) from United States Army, Europe, to Fort Hood, Texas assigned to 2nd Armored Division and reorganized.

1991; Inactivated at Fort Hood, Texas.

16 December 1992; Activated at Fort Hood, Texas using personnel and equipment from the 3rd Squadron, 1st Cavalry.

16 January 1996; Inactivated at Fort Hood, Texas with all personnel and equipment being transferred to the 1st Squadron, 10th Cavalry.

01 June 2006; Activated as 2nd Squadron, 1st Cavalry and assigned to the 4th Brigade, 2nd Infantry Division.

02 March 1833; Constituted in the Regular Army as "C" Company, the United States Regiment of Dragoons

June 1833; Organized at Louisville, Kentucky.

03 July 1833; Joined Regiment of Dragoons at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "C" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "C" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as "C" Company, 1st Cavalry, Mechanized.

15 July 1940; Reorganized and redesignated as "C" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Reorganized and redesignated as "C" Company, 1st Tank Battalion.

01 May 1946; Converted and redesignated as "D" Troop, 1st Constabulary Squadron, concurrently relieved from assignment to 1st Armored Division and assigned to 15th Constabulary Regiment.

20 December 1948; "D" Troop, 1st Constabulary Squadron inactivated in Germany; concurrently converted and redesignated as "D" Company, 1st Medium Tank Battalion, relieved from assignment to 15th Constabulary Regiment and assigned to 1st Armored Division.

07 March 1951; Activated at Fort. Hood, Texas.

20 May 1953; Redesignated as "D" Company, 1st Tank Battalion.

15 February 1957; Inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division.

22 November 1965; Reorganized and redesignated as Headquarters and Headquarters Troop, 3rd Squadron, 1st Cavalry.

16 June 1967; Assigned to 1st Armored Division and activated at Fort Hood, Texas (Organic elements concurrently constituted and activated).

02 March 1833; Constituted in the Regular Army as "D" Company "D", the United States Regiment of Dragoons.

25 July 1833; Organized at Cincinnati, Ohio.

03 August 1833; Joined Regiment of Dragoons at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "D" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "D" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

07 September 1921; Reorganized and redesignated as Headquarters Detachment, 1st Machine Gun Squadron.

01 February 1938; Inactivated at Camp Marfa Texas.

15 July 1940; Activated ad "D" Company, 1st Armored Regiment, an element of the 1st Armored Division at Fort Knox, Kentucky.

20 July 1944; Disbanded at Bolgheri, Italy.

27 February 1951; Reconstituted in the Regular Army and redesignated as "A" Company, 100th Tank Battalion, an element of the 1st Armored Division.

07 March 1951; Activated at Fort Hood, Texas.

15 February 1957; Inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division.

15 May 1958; Redesignated as Headquarters and Headquarters Company, 4th Medium Tank Battalion (Patton), 1st Cavalry; concurrently assigned to the Unites States Military Academy and activated at West Point, New York (Organic elements concurrently constituted and activated)(.

01` May 1966; Redesignated as 4th Battalion, 4th Cavalry.

29 December 1966; Redesignated as 4th Squadron, 1st Cavalry.

02 March 1833; Constituted in the Regular Army as "E" Company, the United States Regiment of Dragoons.

29 June 1833; Organized at New York, New York.

04 August 1833; Joined Regiment of Dragoons at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "E" Company, the 1st Regiment of Dragoons.

03 August 1861; Redesignated as "E" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as "E" Company, 1st Cavalry, Mechanized.

15 July 1940; Reorganized and redesignated as "E" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Disbanded at Bolgheri, Italy.

27 February 1951; Reconstructed in the Regular Army and redesignated as "B" Company, 100th Tank Battalion, an element of the 1st Armored Division.

07 March 1951; Activated at Fort Hood, Texas.

15 February 1957; Inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division.

15 April 1966; Redesignated as "E" Troop, 1st Cavalry and assigned to 11th Infantry Brigade.

01 July 1966; Activated in Hawaii.

02 March 1833; Constituted in the Regular Army as "F" Company, the United States Regiment of Dragoons.

15 December 1833; Organized at Jefferson Barracks, Missouri.

15 March 1836; Redesignated as "F" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "F" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

16 January 1933; Reorganized and redesignated as "F" Company, 1st Cavalry, Mechanized.

15 July 1940; Reorganized and redesignated as "F" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Disbanded at Bolgheri, Italy.

27 February 1951; Reconstructed in the Regular Army and redesignated as "C" Company, 100th Tank Battalion, an element of the 1st Armored Division.

07 March 1951; Activated at Fort Hood, Texas.

15 February 1957; Inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division.

19 June 1957; Redesignated as Headquarters and Headquarters Troop, 6th Squadron, 1st Cavalry, assigned to 2nd Armored Division and activated at Fort Hood. (Organic elements concurrently constituted and activated.)

02 March 1833; Constituted in the Regular Army as"G" Company, the United States Regiment of Dragoons.

16 January 1834; Organized at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "G" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "G" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Assigned to the 1st Cavalry Division.

03 January 1933; Relieved from assignment to the 1st Cavalry Division.

15 January 1933; Reorganized and redesignated as "G" Company, 1st Cavalry Mechanized

15 July 1940; Reorganized and redesignated as "G" Company, 1st Armored Regiment, an element of the 1st Armored Division.

20 July 1944; Disbanded in Italy.

28 March 1967; Redesignated as Headquarters and Headquarters Troop, 7th Squadron, 1st Cavalry. (Organic elements concurrently constituted.

25 April 1967; Activated at fort Knox, Kentucky.

02 March 1833; Constituted in the Regular Army as "H" Company, the United States Regiment of Dragoons.

02 March 1834; Organized at Jefferson Barracks, Missouri.

15 May 1836; Redesignated as "H" Company, the First Regiment of Dragoons.

03 August 1861; Redesignated as "H" Company, the 1st Cavalry Regiment.

December 1917; Assigned to the 15th Cavalry Division.

May 1918; Relieved from assignment to the 15th Cavalry Division.

20 August 1921; Reorganized and redesignated as Headquarters Troop, 1st Cavalry Brigade and assigned to the 1st Cavalry Division.

25 March 1949, Inactivated in Japan and relieved from assignment to the 1st Cavalry Division.

20 May 1949; Converted and redesignated as Headquarters Troop, 1st Constabulary Brigade, and activated at Dotzheim, Germany.

15 August 1951; Inactivated in Germany.

05 December 1951; Disbanded.

10 May 1967; Reconstituted in the Regular Army and redesignated as Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry (Organic elements concurrently concentrated.)

25 August 1967; Activated at Fort Knox, Kentucky.

14 July 1972; Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment inactivated at Fort Knox, Kentucky<./P>

14 July 1998; Redesignated as "H" Troop, 1st Cavalry Regiment and assigned to the 1st Armored Division.

16 June 2000; "H" Troop, 1st Cavalry Regiment activated at Fort Riley, Kansas.

01 October 2005; Redesignated as "H" Troop, 1st Cavalry Regiment.

15 September 2006; H" Troop, 1st Cavalry Regiment inactivated at Fort Riley, Kansas and relieved from assignment to the 1st Armored Division.

17 April 2007; Redesignated as Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment assigned to the 5th Brigade Combat Team, 2nd Infantry Division and activated at Fort Lewis, Washington (organic elements currently activated).

22 July 2010; Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment relieved from assignment to the 5th Brigade Combat Team, 2nd Infantry Division and assigned to the 2d Brigade Combat Team, 2nd Infantry Division.

1833
United States Regiment of Dragoons constituted in the Regular Army.
The unit was composed of "A", "B", "C", "D", "E", "F", "G, "H", "I" & "K" Companies. (02 March)

1833
United States Regiment of Dragoons organized at Jefferson Barracks, Missouri, with Colonel Henry Dodge, commanding. (04 March)

1833
"C" Company, United States Regiment of Dragoons organized at Louisville, Kentucky. (June)

1833
"E" Company, United States Regiment of Dragoons organized at New York, New York. (29 June)

1833
"C" Company joined Regiment of Dragoons at Jefferson Barracks, Missouri. (03 July)

1833
"B" Company, United States Regiment of Dragoons organized at Sacketts Harbor, New York. (29 July)

1833
"D" Company "D",United States Regiment of Dragoons organized at Cincinnati, Ohio. (25 July)

1833
"D" Company "D" joined Regiment of Dragoons at Jefferson Barracks, Missouri. (03 August)

1833
"E" Company joined Regiment of Dragoons at Jefferson Barracks, Missouri. (04 August)

1833
"A" Company, United States Regiment of Dragoons organized at Nashville, Tennessee. (12 August)

1833
"A" Company joined Regiment of Dragoons at Jefferson Barracks, Missouri. (28 August)

1833
"B" Company joined Regiment of Dragoons at Jefferson Barracks, Missouri. (06 September)

1833
"F" Company, United States Regiment of Dragoons organized at Jefferson Barracks, Missouri. (15 December)

1834
Camp Jackson, Arkansas Territory
Fort Leavenworth, Kansas
Fort Gibson, Oklahoma Territory

1834
"G" Company, United States Regiment of Dragoons organized at Jefferson Barracks, Missouri. (16 January)

1834
"H" Company, United States Regiment of Dragoons organized at Jefferson Barracks, Missouri. (02 March)

1836
United States Regiment of Dragoons redesignated as the First Regiment of Dragoons. (15 May)

1836
Nacogdoches, Texas
Fort Des Moines, Iowa

1839
Fort Wayne, Arkansas

1840
Fort Crawford,

1844
Fort Towson, Oklahoma

1845
Fort Scott, Kansas
Fort Atkinson, Wisconsin
Camp Boone (Near Beatties Prairie), Oklahoma
Evansville, Arkansas

1846
Bent's Fort, (Near La Junta), Colorado

1846
Fort Marcy, Santa Fe, New Mexico Territory
"B", "C", "G", "I" & "K" Companies (August)

1846
Mexico surrenders the Territory of New Mexico. (18 August)

1846
Albuquerque Post, District of New Mexico
"G" & "I" Companies (October)

1846
The Battle of San Pasqual, California. (06 - 11 December)

1846
Mexico surrenders the Territory of California. (December)

1847
Albuquerque Post, District of New Mexico
"B" Company (October)

1847
Embude, District of New Mexico
Canada, District of New Mexico
Grand Prairie, Arkansas

1848
Fort Marcy, Santa Fe, District of New Mexico
"B", "C" & "G" Companies (August)

1848
Dona Ana, District of New Mexico
"I" Company (September)

1848
Albuquerque Post, District of New Mexico
"H" Company (October)

1849
Dona Ana, District of New Mexico
"H" Company (July)

1849
Taos, District of New Mexico
"G" Company (December)

1850
Dona Ana, District of New Mexico
"D" & "F" Companies (March)

1850
Fort Rayado, District of New Mexico
"G" & "I" Companies (June)

1850
Camp Las Vagas, District of New Mexico
"F" & "K" Companies (November)

1851
Fort Union, District of New Mexico
"F" Company (August)
"I" Company (September)

1851
Fort Defiance, Arizona Territory
"G" Company (September)

1851
Fort Fillmore, District of New Mexico
"H" Company (October)

1851
Camp Galisteo, District of New Mexico
"F" & "I" Companies (November)

1851
Fort Union, District of New Mexico
"K" Company (November)

1852
Los Pines/Los Lunas, District of New Mexico
"G" Company (January)

1852
Fort Conrad, District of New Mexico
"I" Company (February)

1852
Cantonment Burgwin, District of New Mexico
"I" Company (May)

1852
Fort Webster, District of New Mexico
"H" Company (December)

1853
Albuquerque Post, District of New Mexico
"K" Company (October)
"H" Company (November)

1853
Cantonment Burgwin, District of New Mexico
"F" Company (December)

1854
Fort Fillmore, District of New Mexico
"H" Company (June)

1854
Cantonment Burgwin, District of New Mexico
"F" Company (July)

1854
Fort Craig, District of New Mexico
"D" Company (October)

1854
Fort Fillmore, District of New Mexico
"B" Company (November)

1854
Fort Union, District of New Mexico
"H" Company (November)

1854
Fort Thorn, District of New Mexico
"I" Company (December)

1855
Fort Stanton, District of New Mexico
"B" Company (July)

1855
Fort Union, District of New Mexico
"F" Company (July)

1855
Fort Marcy, Santa Fe, District of New Mexico
"G" Company (December)

1856
Fort Fillmore, District of New Mexico
"B" Company (January)

1856
Los Pines/Los Lunas, District of New Mexico
"G" Company (March)

1856
Fort Stanton, District of New Mexico
"B" Company "B" (May)

1856
Fort Thorn, District of New Mexico
"F" Company (July)

1856
Fort Union, District of New Mexico
"I" Company (July)

1856
Fort Buchanan, Arizona Territory
"D" & "H" Companies (November)
"K" Company (December)

1856
Fort Tejon, California
Camp Moore, District of New Mexico
Fort Yamhill, Oregon
Fort Walla Walla, Washington
Senicia Barracks, California

1859
Fort Fillmore, District of New Mexico
"D" Company (July)

1860
Fort Buchanan, Arizona Territory
"D" Company (May)

1860
Fort Breckenridge, Arizona Territory
"D" Company (November)
"G" Company (December)

1861
First Regiment of Dragoons redesignated as the 1st Cavalry Regiment. (03 August)

1861
Camp Sprague (Near Washington, D.C.)
Camp San Christoval, District of New Mexico
Fort Breckinridge, District of New Mexico
Fort Buchanan, District of New Mexico
Fort Craig, District of New Mexico
"D" & "G" Companies (August)

1862
The Medal of Honor authorized by Congress. (05 July)

1862
The Medal of Honor created in behalf of Army Personnel. (15 October)

1862
Valverde, District of New Mexico
Pigeon's Ranch, District of New Mexico
Peralto, District of New Mexico

1862
Fort Union, District of New Mexico
"D" & "G" Companies (November)

1863
Fort Sumner, District of New Mexico
"G" Company (March)

1863
Camp Buford, Maryland
Drum Barracks, California

1864
1st Lt Moses Harris, 1st Cavalry Regiment earns the Medal of Honor. (28 August)

1865
Pvt Timothy O'Connor, E-1 Cavalry earns the Medal of Honor. (da/mo unspecified)

1865
Fort Vancouver, Washington Territory

1866
Camp Watson, Oregon
Fort Bidwell, California

1866
Fort McDowell, Arizona Territory
"E" Company (May)
Camp Wallen, Arizona Territory
"G" Company (May)

1866
Tuscon, Arizona Territory
"C" Company (July)

1866
Fort Lowell, Arizona Territory
"C" Company (August)

1866
Camp Cameron, Arizona Territory
"K" Company (September)
"C" Company (December)

1867
Fort Grant, Arizona Territory
"C" Company (February)

1867
Camp Santa Rita Mines, Arizona Territory
"K" Company (March)

1867
Camp Independence, California

1868
Fort Lowell, Arizona Territory
"G" Company (June)

1868
Camp Lyon, Indian Territory
Camp Harney, Oregon
Camp Reno, Arizona Territory

1869
Fort Grant, Arizona Territory
"K" Company (January)

1869
Fort Bowie, Arizona Territory
"G" Company (May)

1869
Fort Goodwin, Arizona Territory
"L" Company (June)

1869
Fort Grant, Arizona Territory
"M" Company (September)

1869
Trumpeter Bartholomew T. Keenan, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Charles Kelly, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Cpl Nicholas Meaher, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Edward Murphy, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
1st Sgt Francis Oliver, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Cpl Thomas Powers, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt James Russel, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Theodore Smith, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Thomas Smith, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Thomas J. Smith, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt William H. Smith, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt George Springer, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Thomas Sullivan, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Charles H. Ward, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt Enoch R. Weiss, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Pvt James Sumner, G-1 Cavalry earns the Medal of Honor. (20 October)

1869
Sgt John Thompson, G-1 Cavalry earns the Medal of Honor. (20 October)

1870
Fort Goodwin, Arizona Territory
"M" Company (May)

1870
Fort Apache, Arizona Territory
"L" & "M" Companies (June)

1870
Fort McDowell, Arizona Territory
"C" Company (August)

1871
Fort McDowell, Arizona Territory
"A" Company (November)

1871
Camp Apache, Arizona Territory

1871
Fort Verde, Arizona Territory
"I" Company (December)

1872
Whipple Barracks, Arizona Territory
"A" Company (April)

1872
Tuscon, Arizona Territory
"D" Company (May)

1872
Fort Lowell, Arizona Territory
"D" Company (June)

1872
Fort Klamath, Oregon

1872
1st Sgt Richard Barrett, A-1 earns the Medal of Honor. (23 May)

1872
Pvt James W. Huff, L-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1872
1st Sgt James Blair, I-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1872
Sgt Lehmann Hinemann, L-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1872
Sgt Henry J. Hyde, M-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1872
Pvt Moses Orr, A-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1872
Sgt William Osborne, M-1 Cavalry earns the Medal of Honor. (Winter 72/73)

1873
Mgr John Green, 1st Cavalry earns the Medal of Honor. (17 January)

1873
Bugler Samual Hoover, A-1 Cavalry earns the Medal of Honor. (06 May)

1873
Fort Hallick, Nevada
Camp McDermitt, Nevada
Fort Lapwai, Idaho Territory

1876
1st Sgt Michael McCarthy, H-1 Cavalry earns the Medal of Honor. (Jun/Jan 77)

1877
1st Lt William R. Parnell, 1st Cavalry earns the Medal of Honor. (17 June)

1877
Cpt James Jackson 1st Cavalry earns the Medal of Honor. (20 August)

1878
Fort Boise, Idaho Territory
Fort Colville, Washington Territory

1881
Fort Huachuca, Arizona Territory
"C" Company (October)

1881
Fort Bowie, Arizona Territory
"G" & "I" Companies (October)
"M" Company (November)

1883
Cavalry Companies officially designated as Troops

1884
Fort Custer, Montana
Fort Ellis, Montana
Fort Assinniboine, Montana
Fort Keogh, Montana
Fort Maginnis, Montana
Camp Sheridan, Wyoming

1890
Camp Crook (Near Tongue River Agency)

1892
Fort Bayard, District of New Mexico
"B" & "I" Troops (April)

1892
Fort Grant, Arizona Territory
"C", "E", "F", "G", "H" & "K" Troops (May)

1892
Fort Apache, Arizona Territory
"D" Troop (May)

1892
San Carlos, Arizona Territory
"G" Troop (July)

1892
Fort Myer, Virginia

1893
San Carlos, Arizona Territory
"E" Troop (January)

1893
Fort Grant, Arizona Territory
"G" Troop (January)

1893
San Carlos, Arizona Territory
"C" Troop (December)

1893
Fort Grant, Arizona Territory
"E" Troop (December)

1894
Fort Stanton, District of New Mexico
"A" Troop (October)

1894
Fort Grant, Arizona Territory
"C" Troop (November)

1895
Fort Reno, Oklahoma Territory
Fort Sill, Oklahoma Territory

1896
Fort Huachuca, Arizona Territory
"A" Troop (February)
"I" Troop (November)

1896
Fort Riley, Kansas
Fort Sheridan, Illinois

1898
Chickamauga Park, Georgia
Lakeland, Florida
Tampa, Florida
Montauk, Long Island
Fort Robinson, Nebraska
Fort Yates, North Dakota
Fort Washakie, Wyoming
Fort Meade, South Dakota
Fort Niobiara, Nebraska

1899
Fort D.A. Russell, Wyoming
Fort Meade, South Dakota
Fort Yellowstone, Wyoming
Seattle, Washington
Fort Lawton, Washington

1903
Fort Clark, Texas
Fort Sam Houston, Texas

1911
Cpt Juliene Gaujot, K-1 Cavalry earns the Medal of Honor. (13 April)

1917
1st Cavalry Regiment assigned to the 15th Cavalry Division. (December)

1918
1st Cavalry Regiment relieved from assignment to 15th Cavalry Division. (May)

1921
1st Cavalry Regiment assigned to the 1st Cavalry Division. (20 August)

1921
"H" Troop, 1st Cavalry Regiment reorganized and redesignated as Headquarters Troop, 1st Cavalry Brigade and assigned to the 1st Cavalry Division. (20 August)

1933
1st Cavalry Regiment relieved from assignment to the 1st Cavalry Division. (03 January)

1933
1st Cavalry Regiment reorganized and redesignated as 1st Cavalry Regiment (Mechanized). (16 January)

1940
The 1st Cavalry Regiment (Mechanized), as part of the 7th Cavalry Brigade took part in the Louisiana Maneuvers at Monroe, Louisiana. (07 May)

1940
The 1st Cavalry Regiment was redesignated as the 1st Armored Regiment (Light) whwn thw the 7th Cavalry Brigade was expanded, reorganized, and redesignated as the 1st Armored Division. (15 July)

1940
Redesignated as 1st Armored Regiment (Light), and assigned to the 1st Armored Division. (15 July)

1941
The new 1st Armored Regiment, accompanied by the 1st Armored Division, deployed to participate in the VII Corps Maneuvers. (18 August)

1941
The 1st Armored Regiment, accompanied by the 1st Armored Division, moved on and arrived at Camp Polk, LA for the Second Army LOUISIANA MANEUVERS which began on 11 September. (28 August)

1941
The 1st Armored Regiment, accompanied by the 1st Armored Division, moved to Fort Jackson located at Columbia, South Carolina to participate in the First Army Carolina Maneuvers. (30 October)

1941
The Division returned to Ft. Knox, KY and prepared for deployment overseas instead of returning to garrison. ( 07 December)

1942
The 1st Armored Division was ordered to Fort Dix to await their deployment overseas. (11 April)

1942
The 1st Armored Division received orders to board the Queen Mary at the New York Port of Embarkation at the Brooklyn Army Terminal. (11 May)

1942
The 1st Armored Division arrived at Northern Ireland. (16 May)

1942
The 1st Armored Division continued training on the local moors until they moved on to England. (29 October)

1942
The unit's first contact with an enemy was in Operation TORCH, as part of the Allied invasion of Northwest Africa. (08 November),

1943
The Division was reorganized in French Morocco, and began arriving in Naples, Italy. (28 October)

1943
Under the Fifth Army, invaded the mainland of Italy and took part in the attack on the infamous Winter Line. (November)

1944
The 1st Armored Regiment participated in the liberation of Rome. (04 June)

1944
The 1st Armored Regiment was reorganized (2nd Battalion was deactivated and the remainder was reorganized and redesignated as 1st Tank Battalion. (20 July)

1945
The Division moved to Germany as part of the occupation forces. (June)

1946
The 1st Armored Division returned to the New York Port of Embarkation. (24 April)

1946
1st Armored Division was deactivated at Camp Kilmer, New Jersey. (25 April)

1946
The 1st Tank Battalion was converted and redesignated as the 1st Constabulary Squadron, and concurrently relieved from assignment to the 1st Armored Division, and assigned to the 15th Constabulary Regiment. (01 May)

1948
The 1st Constabulary Squadron was reconverted and redesignated as 1st Medium Tank Battalion, reassigned to the 1st Armored Division, and deactivated. (20 December)

1949
Headquarters Troop, 1st Cavalry Division inactivated in Japan and relieved from assignment to the 1st Cavalry Division. (25 March)

1949
Headquarters Troop, 1st Cavalry Brigade converted and redesignated as Headquarters Troop, 1st Constabulary Brigade, and activated at Dotzheim, Germany. (20 May)

1951
The 2nd Battalion. 1st Armored Regiment was reconstituted, and redesignated as 100th Tank Battalion. (27 February)

1951
"D" Company, 1st Armored Regiment reconstituted in the Regular Army and redesignated as "A" Company, 100th Tank Battalion, an element of the 1st Armored Division. (27 February)

1951
"E" Company, 1st Armored Regiment reconstructed in the Regular Army and redesignated as "B" Company, 100th Tank Battalion, an element of the 1st Armored Division. (27 February)

1951
"F" Company, 1st Armored Regiment reconstructed in the Regular Army and redesignated as "C" Company, 100th Tank Battalion, an element of the 1st Armored Division. (27 February)

1951
The 1st Medium Tank Battalion was reactivated as part of 1st Armored Division at Ft. Hood, TX. (07 March)

1951
"A" Company, 1st Medium Tank Battalion activated at Fort. Hood, Texas. (07 March).

1951
"B" Company, 1st Medium Tank Battalion, activated at Fort Hood, Texas. (07 March)

1951
"D" Company, 1st Medium Tank Battalion activated at Fort. Hood, Texas. (07 March)

1951
"A" Company, 100th Tank Battalion activated at Fort Hood, Texas. (07 March)

1951
"B" Company, 100th Tank Battalion activated at Fort Hood, Texas. (07 March)

1951
"C" Company, 100th Tank Battalion activated at Fort Hood, Texas. (07 March

1951
Headquarters Troop, 1st Constabulary Brigade inactivated in Germany. (15 August)

1951; Headquarters Troop, 1st Constabulary Brigade disbanded. (05 December)

1953
"B" Company, 1st Medium Tank Battalion redesignated as "B" Company, 1st Tank Battalion. (20 May)

1953
"D" Company, 1st Medium Tank Battalion redesignated as "D" Company, 1st Tank Battalion. (20 May)

1953
"A" Company, 1st Medium Tank Battalion redesignated as "A" Company, 1st Tank Battalion. (26 May)

1957
"B" Company, 1st Tank Battalion inactivated at Fort Polk, Louisiana, and relieved from assignment to 1st Armored Division. (15 February)

1957
A" Company, reorganized and redesignated as Headquarters and Headquarters Company, 1st Medium Tank Battalion (Patton), 1st Cavalry, and assigned to 1st Armored Division (Organic elements concurrently constituted and activated. (15 February)

1957
"A" Company, 100th Tank Battalion inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division. (15 February)

1957
"B" Company, 100th Tank Battalion inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division. (15 February)

1957
"C" Company, 100th Tank Battalion inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division. (15 February)

1957
"D" Company, 1st Tank Battalion inactivated at Fort Polk, Louisiana and relieved from assignment to 1st Armored Division. (15 February)

1957
"C" Company, 100th Tank Battalion redesignated as Headquarters and Headquarters Troop, 6th Squadron, 1st Cavalry, assigned to 2nd Armored Division and activated at Fort Hood. (Organic elements concurrently constituted and activated.) (19 June)

1957
"B" Company, 1st Tank Battalion redesignated as Headquarters and Headquarters Company, 2nd Medium tank Battalion (Patton), 1st Cavalry; concurrently assigned to 3rd Armored Division and activated in Germany (Organic elements concurrently constituted and activated using personnel and equipment from the 7th Tank Battalion). (01 October)

1958
"A" Company, 100th Tank Battalion redesignated as Headquarters and Headquarters Company, 4th Medium Tank Battalion (Patton), 1st Cavalry; concurrently assigned to the Unites States Military Academy and activated at West Point, New York (Organic elements concurrently constituted and activated.) (15 May)

1962; Reorganized and redesignated as 1st Squadron, 1st Cavalry. (03 February)

1963
Headquarters and Headquarters Company, 2nd Medium tank Battalion (Patton), 1st Cavalry redesignated as 2nd Squadron, 1st Cavalry; concurrently, relieved from assignment to 3rd Armored Division, transferred (less personnel and equipment, which were transferred to the 3rd Battalion, 33d Armor) from United States Army, Europe, to Fort Hood, Texas assigned to 2nd Armored Division and reorganized. (01 July)

1965
"D" Company, 1st Tank Battalion reorganized and redesignated as Headquarters and Headquarters Troop, 3rd Squadron, 1st Cavalry. (22 November)

1966
"B" Company, 100th Tank Battalion redesignated as "E" Troop, 1st Cavalry and assigned to 11th Infantry Brigade. (15 April)

1966; Headquarters and Headquarters Company, 4th Medium Tank Battalion (Patton), 1st Cavalry redesignated as 4th Battalion, 4th Cavalry. (01 May)

1966
"E" Troop, 1st Cavalry activated in Hawaii. (01 July)

1966
4th Battalion, 4th Cavalry redesignated as 4th Squadron, 1st Cavalry. (29 December)

1967; "G" Company, 1st Armored Regiment redesignated as Headquarters and Headquarters Troop, 7th Squadron, 1st Cavalry. (Organic elements concurrently constituted. (28 March)

1967
Headquarters and Headquarters Troop, 7th Squadron, 1st Cavalry activated at fort Knox, Kentucky. (25 April)

1967
Headquarters Troop, 1st Constabulary Brigade reconstituted in the Regular Army and redesignated as Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry (Organic elements concurrently concentrated.) (10 May)

1967; Headquarters and Headquarters Troop, 3rd Squadron, 1st Cavalry assigned to 1st Armored Division and activated at Fort Hood, Texas (Organic elements concurrently constituted and activated). (16 June)

1967
Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry activated at Fort Knox, Kentucky. (25 August)

1972;
Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment inactivated at Fort Knox, Kentucky. (14 July)<./P>

1991
2nd Squadron, 1st Cavalry inactivated at Fort Hood, Texas.

1992
2nd Squadron, 1st Cavalry activated at Fort Hood, Texas using personnel and equipment from the 3rd Squadron, 1st Cavalry. (16 December)

1996
2nd Squadron, 1st Cavalry inactivated at Fort Hood, Texas with all personnel and equipment being transferred to the 1st Squadron, 10th Cavalry. (16 January)

1998
Redesignated as "H" Troop, 1st Cavalry Regiment and assigned to the 1st Armored Division. (14 July)

2000
"H" Troop, 1st Cavalry Regiment activated at Fort Riley, Kansas. (16 June)

2005
Redesignated as "H" Troop, 1st Cavalry Regiment. (01 October)

2006
2nd Squadron, 1st Cavalry activated and assigned to the 4th Brigade, 2nd Infantry Division. (01 June)

2006
H" Troop, 1st Cavalry Regiment inactivated at Fort Riley, Kansas and relieved from assignment to the 1st Armored Division. (15 September)

2007
Redesignated as Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment, assigned to the 5th Brigade Combat Team, 2nd Infantry Division and activated at Fort Lewis, Washington. (organic elements currently activated). (17 April)

22 July 2010 Headquarters and Headquarters Troop, 8th Squadron, 1st Cavalry Regiment relieved from assignment to the 5th Brigade Combat Team, 2nd Infantry Division and assigned to the 2nd Brigade Combat Team, 2nd Infantry Division.