US Armoured Infantry Regiments
6TH ARMORED INFANTRY REGIMENT
6th Infantry Regiment reorganized and redesignated 15 July 1940, as 6th Infantry Regiment (Armored) and assigned to the 1st Armored Division.
Redesignated 1 January 1942 as 6th Armored Infantry Regiment.
Regiment broken up 20 July 1944, elements reorganized and redesignated as follows:
Regiment (less 2nd and 3rd Battalions as 6th Armored Infantry Battalion.
2nd Battalion as 11th Armored Infantry Battalion.
3rd Battalion as 14th Armored Infantry Battalion.
Campaigns: Algeria-French Morocco (with arrowhead), Tunisia, Naples-Foggia, Anzio, Rome-Arno.
36TH ARMORED INFANTRY REGIMENT
Activated 15 April 1941 as the 36th Infantry Regiment (Armored) and assigned to the 3rd Armored Division.
Redesignated 1 January 1942 as 36th Armored Infantry Regiment.
Campaigns: Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
41ST ARMORED INFANTRY REGIMENT
Activated 15 July 1940 as the 41st Infantry Regiment (Armored) and assigned to the 2nd Armored Division.
Redesignated 1 January 1942 as 41st Armored Infantry Regiment.
Campaigns: Algeria-French Morocco (with arrowhead), Sicily (with arrowhead), Normandy, Northern France, Rhineland, Ardennes-Alsace, Central Europe.
46TH ARMORED INFANTRY REGIMENT
Activated 1 October 1941 as the 46th Infantry Regiment (Armored) and assigned to the 5th Armored Division.
Redesignated 1 January 1942 as 46th Armored Infantry Regiment.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions) as 46th Armored Infantry Battalion.
1st Battalion as 47th Armored Infantry Battalion.
2nd Battalion as 15th Armored Infantry Battalion.
48TH ARMORED INFANTRY REGIMENT
48th Armored Infantry Regiment activated 2 March 1942 and assigned to the 7th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
48th Armored Infantry (less 1st and 2nd Battalions) as 48th Armored Infantry Battalion.
1st Battalion as 38th Armored Infantry Battalion.
2nd Battalion as 23rd Armored Infantry Battalion.
49TH ARMORED INFANTRY REGIMENT
49th Armored Infantry Regiment activated 1 April 1942 and assigned to the 8th Armored Division.
Regiment broken up 20 April 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions) as 49th Armored Infantry Battalion.
1st Battalion as 58th Armored Infantry Battalion.
2nd Battalion as 7th Armored Infantry Battalion.
50TH ARMORED INFANTRY REGIMENT
50th Armored infantry Regiment activated 15 February 1942 and assigned to the 6th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions) as 50th Armored Infantry Battalion.
1st Battalion as 44th Armored Infantry Battalion.
2nd Battalion as 9th Armored Infantry Battalion.
51ST ARMORED INFANTRY REGIMENT
Activated 15 April 1941 as the 51st Infantry Regiment (Armored) and assigned to the 4th Armored Division.
Redesignated 1 January 1942 as 51st Armored Infantry Regiment.
Regiment broken up 10 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions (as 51st Armored Infantry Battalion.
1st Battalion as 53rd Armored Infantry Battalion.
2nd Battalion as 10th Armored Infantry Battalion.
52ND ARMORED INFANTRY REGIMENT
52nd Armored Infantry activated 15 July 1942, and assigned to the 9th Armored Division.
Regiment broken up 9 October 1943, elements reorganized and redesignated as follows:
Regiment (less 1st, 2nd, and 3rd Battalions) as 52nd Armored Infantry Battalion.
1st Battalion as 60th Armored Infantry Battalion.
2nd Battalion as 27th Armored Infantry Battalion.
3rd Battalion disbanded.
54TH ARMORED INFANTRY REGIMENT
54th Armored Infantry Regiment activated 15 July 1942 and assigned to the 10th Armored Division.
Regiment broken up 20 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st, 2nd, and 3rd Battalions) as 54th Armored Infantry Regiment.
1st Battalion as 61st Armored Infantry Battalion.
2nd Battalion as 20th Armored Infantry Battalion.
3rd Battalion disbanded.
55TH ARMORED INFANTRY REGIMENT
55th Armored Infantry 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 2nd Battalions) as 55th Armored Infantry Battalion.
1st Battalion as 63rd Armored Infantry Battalion.
2nd Battalion as 21st Armored Infantry Battalion.
56TH ARMORED INFANTRY REGIMENT
56th Armored Infantry 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 2nd Battalions) as 56th Armored Infantry Battalion.
1st Battalion as 66th Armored Infantry Battalion.
2nd Battalion as 17th Armored Infantry Battalion.
59TH ARMORED INFANTRY REGIMENT
59th Armored Infantry 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 2nd Battalions) as 59th Armored Infantry Battalion.
1st Battalion as 67th Armored Infantry Battalion.
2nd Battalion as 16th Armored Infantry Battalion.
62ND ARMORED INFANTRY REGIMENT
62nd Armored Infantry 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 2nd Battalions) as 62nd Armored Infantry Battalion.
1st Battalion as 68th Armored Infantry Battalion.
2nd Battalion as 19th Armored Infantry Battalion.
476TH ARMORED INFANTRY REGIMENT
476th Armored Infantry Regiment activated 15 July 1943 and assigned to the 16th Armored Division.
Regiment broken up 10 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions) as 18th Armored Infantry Battalion.
1st Battalion as 64th Armored Infantry Battalion.
2nd Battalion as 69th Armored Infantry Battalion.
480TH ARMORED INFANTRY REGIMENT
480th Armored Infantry Regiment activated 15 March 1943 and assigned to the 20th Armored Division.
Regiment broken up 10 September 1943, elements reorganized and redesignated as follows:
Regiment (less 1st and 2nd Battalions) as 8th Armored Infantry Battalion.
1st Battalion as 65th Armored Infantry Battalion.
2nd Battalion as 70th Armored Infantry Battalion.
