| Unit Name: | 415th Regiment |
| Dates: | 1921–1945 1947–present |
| Country: | United States |
| Branch: | United States Army Reserve |
| Motto: | Old Faithful |
| Battles: | World War II |
The 415th Regiment is a regiment of the United States Army Reserve.
The 415th Infantry was constituted in the Organized Reserve on 24 June 1921, assigned to the 104th Division, and allotted to the Ninth Corps Area. The regiment was initiated on 30 January 1922 with regimental headquarters organized at Casper, Wyoming. Subordinate battalion headquarters were concurrently organized as follows: 1st Battalion at Gillette, Wyoming; 2nd Battalion at Casper; and 3rd Battalion at Laramie, Wyoming. The regimental band was organized in 1923 at Roundup, Montana, and inactivated in 1929. The entire regiment was relocated on 2 May 1930 to Casper. The regiment conducted summer training most years with the 38th Infantry Regiment at Fort Douglas, Utah, and after 1927, with units of the 2nd Division's 4th Infantry Brigade at Fort D.A. Russell/Francis E. Warren, Wyoming, and the Pole Mountain Military Reservation, Wyoming. The primary ROTC "feeder" school for new lieutenants for the regiment was the University of Wyoming. The regiment was inactivated on 27 December 1940 at Casper by relief of personnel.[1]
It was ordered into active service on 15 September 1942, and saw service during World War II with campaign participation credit for the Northern France, Rhineland, and Central Europe campaigns.
Inactivated during post-World War II demobilization, the regiment was reactivated 12 June 1947 as part of the Organized Reserve and headquartered in Tacoma, Washington under the 104th Division. The Battalions have been realigned under the 95th Training Division and provides trained personnel to support Initial Entry Training. Most recently, the regiment have trained personnel ahead of deployments to the War in Afghanistan (2001-2021) and the War in Iraq (2003-2011).
| Conflict | Streamer | Year(s) |
|---|---|---|
| World War II | Northern France | 1944 |
| Rhineland | 1944-1945 | |
| Central Europe | 1945 | |
| World War II Victory | None |
| Ribbon | Award | Year | Subordinate Elements | Embroidered | Notes |
|---|---|---|---|---|---|
| Presidential Unit Citation | 1944 | 1st Battalion | Roer River Bridge Head | ||
| Presidential Unit Citation | 1945 | 2nd and 3rd Battalions | Lucherberg | ||
| Army Superior Unit Award | 1 JAN 05- 31 DEC 06 | All Battalions | 2005-2006 | Permanent Orders 147-30[2] | |