| DATE
OF EVENT | EVENT | LOCATION |
| 1942, 1 JULY | Training
began at the commando depot, , and the course was completed 31 July, at which
time the battalion was assigned to the Number 3 and 4 Commando groups. Fifty Rangers
from these groups took part in the Dieppe raid. | Achnacarry,
Scotland |
| | The
1st Ranger Infantry Battalion was constituted in the Army of the United States
of America | Garrickfengus, northern Ireland |
| 1943, 1 SEPTEMBER | The
Fifth Ranger Battalion was activated. | Camp
Forrest, Tennessee |
| 1943, 14 SEPTEMBER | The
Fifth Ranger Battalion began training. | Camp
Forrest, Tennessee |
| 1943, 5 NOVEMBER | The
5th Ranger Battalion began Amphibious Training Base. | Fort
Pierce, Florida. |
| 1943 | Companies
A and B of the 1st Ranger Infantry Battalion were redesignated as the 3rd Ranger
Infantry Battalion. Companies C and D were redesignated as the 4th Ranger Infantry
Battalion. Companies E and F were redesignated as the 1st Ranger Infantry Battalion. | |
| 1943 | Company
F (Ranger), 75th Infantry, organized in the Army of the United States as an element
of the 5307th Composite Unit (Provisional) and activated. |
China-Burma-India Theater of Operations. |
| 1943 | 2nd
Ranger Battalion constituted into the Army of the United States and activated. | Camp
Forrest Tennessee. |
| 1943 | Redesignated
as the 2nd Ranger Infantry Battalion and relocated to the European Theater of
Operation. | |
| 1944,
8 JANUARY | The 5th Ranger Battalion left New
York harbor on HMS Mauretania. | |
| 1944, 18 JANUARY |
The Fifth Ranger Battalion arrive at Liverpool, England. | |
| 1944, 19 JANUARY | The
Fifth Ranger Battalion move by rail to Leominster, England. | |
| 1944, 1 MARCH | The
Fifth Ranger Battalion move to Scotland for British Commando Training. | |
| 1944, 6 June |
0710 H - U.S. Army 2nd Ranger Battalion begins assault on Pointe du Hoc. The 5th
Ranger Battalion land at Omaha Dog White Beach. | |
| 1944 | 1st Ranger
Infantry Battalion was disbanded. | |
| 1944 | Company
F consolidated with Company F, 475th Infantry, and redisignated as Company F,
475th Infantry. | |
| 1945 | Company
F 475th Infantry inactivated. | Republic of
China. |
| 1945 | 2nd
Ranger Battalion inactivated. | Camp Patrick
Henry, Virginia. |
| 1948 | 1st
Ranger Infantry Battalion was reconstituted in the Army of the United States as
the 1st Infantry Battalion and activated. | Panama
Canal Zone |
| 1949 | 2nd
Ranger Battalion redesignated as the 2nd Infantry Battalion, with Companies E
and F disbanded. | |
| 1949 | 2nd
Infantry Battalion activated. | Panama Canal
Zone. |
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