A-4-1

• Unit Designation: A-4-1 typically refers to Alpha Company, 4th Battalion, 1st Infantry Regiment, a designation used in various U.S. Army divisions throughout history. • Civil War Roots: The 1st Infantry Regiment, to which A-4-1 is attached, is one of the oldest active units in the U.S. Army, tracing its lineage back to 1791 and seeing action in the War of 1812, Mexican-American War, and the Civil War. • World War II Service: Elements of the 1st Infantry Regiment, including the 4th Battalion, fought in multiple theaters during World War II, including North Africa, Sicily, and mainland Europe. • Vietnam War Operations: Companies from the 4th Battalion, 1st Infantry Regiment were heavily involved in combat operations during the Vietnam War, serving under the 196th Light Infantry Brigade. • Fort Polk Heritage: In more recent years, A-4-1 has been known as a Basic Combat Training unit at Fort Polk, Louisiana, training thousands of new Army recruits. • Distinctive Unit Insignia: The 1st Infantry Regiment's insignia features a blue shield and a silver star, symbolizing its long-standing service and participation in numerous campaigns. • Nickname: The 1st Infantry Regiment is sometimes called “First at Vicksburg,” honoring its role in the siege and capture of Vicksburg during the Civil War. • Notable Soldiers: Several Medal of Honor recipients have served in the 1st Infantry Regiment, highlighting the valor and heroism associated with A-4-1’s lineage. • Transformation and Modernization: Over the decades, A-4-1 has evolved from a traditional line infantry company to an advanced training unit, reflecting shifts in Army doctrine and technology. • Traditions and Esprit de Corps: Soldiers who have trained in A-4-1 often share stories of camaraderie, challenging training, and the pride of joining the Army’s long tradition of service.