A-4-1, OSUT, Fort Knox, KY

A-4-1, also known as Alpha Company, 4th Battalion, 1st Brigade, was a basic training unit located at Fort Knox, Kentucky. As part of the One Station Unit Training (OSUT) program, A-4-1 trained new recruits in both basic combat training and advanced individual training, primarily for armor and cavalry specialties. Throughout the late 20th and early 21st centuries, A-4-1 played a key role in preparing thousands of soldiers for service in the U.S. Army's armored forces. The unit was recognized for its disciplined cadre and rigorous training standards until Fort Knox’s basic training mission was relocated and armor training moved to Fort Benning in 2011.