The 1st Battalion, 11th Infantry Regiment (1/11th Infantry) has a distinguished history within the United States Army, tracing its lineage back to its constitution in 1861 during the Civil War. The unit fought valiantly in major campaigns such as the Battle of Gettysburg and the Atlanta Campaign, earning a reputation for discipline and courage. Throughout the 20th century, 1/11th Infantry served in World War II and Vietnam, adapting to evolving combat environments and playing key roles in operations. In the modern era, the battalion is primarily associated with the U.S. Army Infantry School at Fort Moore (formerly Fort Benning), where it is responsible for training and developing future infantry leaders.