90th Infantry Regiment (United States)

90th Infantry Regiment
Active
  • 1918–1919
  • 1943–1945
CountryUnited States
BranchUnited States Army
TypeInfantry

The 90th Infantry Regiment was a Regular Army infantry regiment of the United States Army, which existed during World War I and World War II.

The regiment was organized in 1918 during World War I with the 20th Division, but the war ended before it could be deployed overseas; it was demobilized in spring 1919.

During World War II, the 90th Infantry was again activated with the 10th Light Division (the future 10th Mountain) in mid-1943, but was transferred to become a nondivisional separate training unit in early 1944, inactivating in mid-1945.