1ST ARMORED REGIMENT
1st Cavalry Regiment reorganized and redesignated 15 July 1940 as 1st Armored Regiment, and assigned to the 1st Armored Division.
Reorganized 20 July 1944, and elements reorganized and redesignated as follows:
Regiment (less 2nd Battalion) as 1st Tank Battalion.
2nd Battalion, disbanded.
Campaigns: Algeria-French Morocco (with arrowhead), Tunisia, Naples-Foggia, Anzio, Rome-Arno.
2ND ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 3rd Armored Division.
Redesignated 8 May 1941 as the 32nd Armored Regiment.
2ND ARMORED REGIMENT
Activated 15 July 1942 from assets provided by the 2nd Cavalry Regiment, and assigned to the 9th Armored Division.
Regiment broken up 9 October 1943 and elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 2nd Tank Battalion.
1st Battalion as 776th Tank Battalion and relieved from assignment to 9th Armored Division.
3rd Battalion as 19th Tank Battalion.
Reconnaissance Company as Troop D, 89th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
3RD ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 3rd Armored Division.
Redesignated 8 May 1941 as the 33rd Armored Regiment.
3RD ARMORED REGIMENT
Activated 15 July 1942 from assets provided by the 3rd Cavalry Regiment, and assigned to the 10th Armored Division.
Regiment broken up 20 September 1943, and elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 3rd Tank Battalion.
1st Battalion as 777th Tank Battalion and relieved of assignment to 10th Armored Division.
3rd Battalion as 21st Tank Battalion.
Reconnaissance Company as Troop D, 90th Cavalry Reconnaissance Squadron
Band, Maintenance, and Service Companies disbanded.
4TH ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 3rd Armored Division.
Redesignated 8 May 1941 as the 40th Armored Regiment.
Inactivated 1 January 1942 and relieved of assignment to the 3rd Armored Division.
5TH ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 4th Armored Division.
Redesignated 8 May 1941 as the 35th Armored Regiment.
5TH ARMORED REGIMENT
Activated 15 July 1943 and assigned to the 16th Armored Division.
Regiment broken up 10 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service and Reconnaissance Companies) as 5th Tank Battalion.
1st Battalion as 717th Tank Battalion and relieved of assignment to 16th Armored Division.
3rd Battalion as 26th Tank Battalion.
Reconnaissance Company as Troop D, 23rd Cavalry Reconnaissance Squadron
Band, Maintenance and Service Companies disbanded.
7TH ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 4th Armored Division.
Redesignated 8 May 1941 as the 37th Armored Regiment.
8TH ARMORED REGIMENT
Activated 15 April 1941 and assigned to the 4th Armored Division.
Redesignated 8 May 1941 as the 80th Armored Regiment.
9TH ARMORED REGIMENT
Activated 15 March 1943 and assigned to the 20th Armored Division.
Regiment broken up 10 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service and Reconnaissance Companies) as 9th Tank Battalion.
1st Battalion as 718th Tank Battalion and relieved from assignment to 20th Armored Division.
3rd Battalion as 27th Tank Battalion.
Reconnaissance Company as Troop D, 33rd Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
11TH ARMORED REGIMENT
Activated 15 July 1942 with assets provided by the 11th Cavalry Regiment, and assigned to the 10th Armored Division.
Regiment broken up 20 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies) as 11th Tank Battalion.
3rd Battalion as 712th Tank Battalion, and relieved of assignment to 10th Armored Division.
Reconnaissance Company as Troop E, 90th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
13TH ARMORED REGIMENT
13th Cavalry Regiment reorganized and redesignated 15 July 1940 as the 13th Armored Regiment, and assigned to the 1st Armored Division.
Regiment broken up 20 July 1944, and elements reorganized and redesignated as follows:
Headquarters and Headquarters Company, Service Company, and Companies D, E, and F as 13th Tank Battalion.
3rd Battalion and Maintenance Company as 4th Tank Battalion.
Reconnaissance Company as Troop D, 81st Cavalry Reconnaissance Squadron.
Headquarters and Headquarters Companies 1st and 2nd Battalions, and Companies A, B, and C disbanded.
Campaigns: Algeria-French Morocco, Tunisia, Naples-Foggia, Anzio, Rome-Arno.
14TH ARMORED REGIMENT
Activated 15 July 1942 with assets provided by the 14th Cavalry Regiment, and assigned to the 9th Armored Division.
Regiment broken up 9 October 1943 and elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service, and Reconnaissance Companies) as 14th Tank Battalion.
3rd Battalion as 711th Tank Battalion and relieved of assignment to 9th Armored Division.
Reconnaissance Company as Troop E, 89th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
16TH ARMORED REGIMENT
Activated 15 July 1943 and assigned to the 16th Armored Division.
Regiment broken up 10 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Service, Maintenance, and Reconnaissance Companies) as 16th Tank Battalion.
3rd Battalion as 787th Tan Battalion and relieved from assignment to 16th Armored Division.
Reconnaissance Company as Troop E, 23rd Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
20TH ARMORED REGIMENT
Activated 15 March 1943 and assigned to the 20th Armored Division.
Regiment broken up 10 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies) as 20th Tank Battalion.
3rd Battalion as 788th Tank Battalion and relieve from assignment to 20th Armored Division.
Reconnaissance Company as Troop #, 33rd Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
31ST ARMORED REGIMENT
Activated 1 October 1941 and assigned to the 5th Armored Division.
Inactivated 1 January 1942.
Activated 2 March 1942 and assigned to the 7th Armored Division.
Regiment broken up 20 September 1943 and elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 31st Tank Battalion.
1st Battalion as 774th Tank Battalion and relieve from assignment to 7th Armored Division.
3rd Battalion as 17th Tank Battalion.
Reconnaissance Company as Troop D, 87th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
32ND ARMORED REGIMENT
2nd Armored Regiment redesignated 8 May 1941 as 32nd Armored Regiment and remained assigned to the 3rd Armored Division.
Campaigns: Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
33RD ARMORED REGIMENT
3rd Armored Regiment redesignated 8 May 1941 as 33rd Armored Regiment and remained assigned to the 3rd Armored Division.
Campaigns: Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
34TH ARMORED REGIMENT
Activated 1 October 1941 and assigned to the 5th Armored Division.
Regiment broken up 20 September 1943 and elements reorganized and redesignated as follows:
Regimental Headquarters and Headquarters Company and 2nd Battalion as 34th Tank Battalion.
1st Battalion as 772nd Tank Battalion and relieved of assignment to 5th Armored Division.
3rd Battalion as 10th Tank Battalion.
Reconnaissance Company as Troop D, 85th Cavalry Reconnaissance Squadron.
Maintenance, and Service Companies disbanded.
35TH ARMORED REGIMENT
5th Armored Regiment redesignated 8 May 1941 as the 35th Armored Regiment.
Regiment broken up 10 September 1943 and elements reorganized and redesignated as follows:
Regimental Headquarters and Headquarters Company and 2nd Battalion as 35th Tank Battalion.
1st Battalion as 771st Tank Battalion, and relieved of assignment to 4th Armored Division.
3rd Battalion as 8th Tank Battalion.
Reconnaissance Company as Troop D, 25th Cavalry Reconnaissance Squadron.
Maintenance and Service Companies disbanded.
36TH ARMORED REGIMENT
36th Armored Regiment activated 1 April 1942 and assigned to the 8th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 36th Tank Battalion.
1st Battalion as 775th Tank Battalion and relieved of assignment to 8th Armored Division.
3rd Battalion as 18th Tank Battalion.
Reconnaissance Company as Troop D, 88th Cavalry Reconnaissance Squadron.
Band, Maintenance and Service Companies disbanded.
37TH ARMORED REGIMENT
7th Armored Regiment redesignated 8 May 1941 as 37th Armored Regiment.
Regiment broken up 10 September 1943, elements reorganized and redesignated as follows:
Regimental Headquarters Company, 1st Battalion, and Company D, as 37th Tank Battalion.
3rd Battalion as 706th Tank Battalion and relieved from assignment to 4th Armored Division.
Reconnaissance Company as Troop E, 25th Cavalry Reconnaissance Squadron.
Remainder of 2nd Battalion personnel absorbed into 37th Tank Battalion.
Maintenance and Service Companies disbanded.
40TH ARMORED REGIMENT
4th Armored Regiment activated 2 March 1942 and assigned to the 7th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Maintenance, Service and Reconnaissance Companies) as 40th Tank Battalion.
3rd Battalion as 709th Tank Battalion.
Reconnaissance Company as Troop E, 7th Cavalry Reconnaissance Squadron.
Maintenance, and Service Companies disbanded.
41ST ARMORED REGIMENT
41st Armored Regiment activated 15 August 1942 and assigned to the 11th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service and Reconnaissance Companies) as 41st Tank Battalion.
1st Battalion as 778th Tank Battalion and relieved of assignment to 11th Armored Division.
3rd Battalion as 22nd Tank Battalion.
Reconnaissance Company as Troop D, 41st Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
42ND ARMORED REGIMENT
42nd Armored Regiment activated 15 August 1942 and assigned to the 11th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies) as 42nd Tank Battalion.
3rd Battalion as 713th Tank Battalion and relieved from assignment to 11th Armored Division.
Reconnaissance Company as Troop E, 41st Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
43RD ARMORED REGIMENT
43rd Armored Regiment activated 15 September 1942 and assigned to the 12th Armored Division.
Regiment broken up 11 November 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 43rd Tank Battalion.
1st Battalion as 779th Tank Battalion and relieved from assignment to 12th Armored Division.
3rd Battalion as 23rd Tank Battalion.
Reconnaissance Company as Troop D, 92nd Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
44TH ARMORED REGIMENT
44th Armored Regiment activated 15 September 1942 and assigned to the 12th Armored Division.
Regiment broken up 11 November, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Maintenance, Service, and Reconnaissance Companies) as 44th Tank Battalion.
3rd Battalion as 714th Tank Battalion and relieved from assignment to 12th Armored Division.
Reconnaissance Company as Troop E, 92nd Cavalry Reconnaissance Squadron.
Maintenance, and Service Companies disbanded.
45TH ARMORED REGIMENT
45th Armored Regiment activated 15 October 1942 and assigned to the 13th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows.
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 45th Tank Battalion.
1st Battalion as 780th Tank Battalion and relieved of assignment to the 13th Armored Division.
3rd Battalion as 24th Tank Battalion.
Reconnaissance Company as Troop D, 93rd Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
47TH ARMORED REGIMENT
47th Armored Regiment activated 15 November 1942 and assigned to the 14th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 3rd Battalions, Band, Maintenance, Service, and Reconnaissance Companies) as 47th Tank Battalion.
1st Battalion as 786th Tank Battalion and relieved from assignment to 14th Armored Division.
3rd Battalion as 25th Tank Battalion.
Reconnaissance Company as Troop D, 94th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
48TH ARMORED REGIMENT
48th Armored Regiment activated 15 November 1942 and assigned to the 14th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies as 48th Tank Battalion.
3rd Battalion as 716th Tank Battalion, and relieved from assignment to 14th Armored Division.
Reconnaissance Company as Troop E, 94th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Services Companies disbanded.
66TH ARMORED REGIMENT
66th Infantry Regiment (Light Tanks) redesignated 15 July 1940 as 66th Armored Regiment and assigned to the 2nd Armored Division.
Campaigns: Algeria-French Morocco (with arrowhead), Sicily, Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
67TH ARMORED REGIMENT
67th Infantry Regiment (Medium Tanks) redesignated 15 July 1940 as 67th Armored Regiment and assigned to the 2nd Armored Division.
Campaigns: Algeria-French Morocco (with arrowhead), Tunisia, Sicily (with arrowhead), Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
68TH ARMORED REGIMENT
68th Infantry Regiment (Light Tanks) redesignated 68th Armored Regiment and assigned to the 2nd Armored Division.
Activated 1 August 1940.
Inactivated 8 January 1942 and relived from assignment to 2ndArmored Division.
Activated 13 February 1942 and assigned to the 6th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regimental Headquarters and Headquarters Company, and 2nd Battalion as 68th Tank Battalion.
1st Battalion as 773rd Tank Battalion and relieved of assignment to 6th Armored Division.
3rd Battalion as 15th Tank Battalion.
Reconnaissance Company as Troop D, 86th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
69TH ARMORED REGIMENT
69th Armored Regiment activated 31 July 1940 and assigned to the 1st Armored Division.
Inactivated10 January 1942.
Relieved 15 February 1942 from assignment to the 1st Armored Division, activated, and assigned to the 6th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regimental Headquarters and Headquarters Company, 1st Battalion Headquarters and Headquarters Company, and Companies A, B, C, and D as 68th Tank Battalion.
3rd Battalion as 708th Tank Battalion and relieved of assignment to the 6th Armored Division.
Reconnaissance Company as Troop E, 86th Cavalry Reconnaissance Squadron.
Remainder of 2nd Battalion personnel absorbed into the 68th Tank Battalion.
Maintenance and Service Companies disbanded.
80TH ARMORED REGIMENT
8th Armored Regiment redesignated 8 May 1941 as 80th Armored Regiment.
Inactivated 5 January 1942 and relieved of assignment to 4th Armored Division.
Activated 1 April 1942 and assigned to the 8th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies) as 80th Tank Battalion.
3rd Battalion as 710th Tank Battalion and relieved from assignment to 8th Armored Division.
Reconnaissance Company as Troop E, 86th Cavalry Reconnaissance Squadron.
Band, Maintenance and Service Companies disbanded.
81ST ARMORED REGIMENT
81st Armored Regiment activated 1 October 1941 and assigned to the 5th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 3rd Battalion, Band, Maintenance, Service and Reconnaissance Companies) as 81st Tank Battalion.
3rd battalion as 707th Tank Battalion and relieved from assignment to the 5th Armored Division.
Reconnaissance Company as Troop E, 85th Cavalry Reconnaissance Squadron.
Band, Maintenance, and Service Companies disbanded.
ARMORED FORCES SCHOOL DEMONSTRATION REGIMENT
Activated 1 February 1942.
Inactivated 24 January 1945.
