5:77th Armor Battalion

• Origins in World War II: The 5th Battalion, 77th Armor traces its lineage back to the 77th Tank Battalion, which was originally constituted in the U.S. Army during World War II. • Service in Vietnam: The 5/77th Armor Battalion served with distinction in the Vietnam War as part of the 1st Brigade, 5th Infantry Division (Mechanized), earning several campaign streamers for its actions. • Nickname "Steel Tigers": The battalion earned the nickname "Steel Tigers" for its fierce combat performance and the power of its armored vehicles. • Quang Tri and Khe Sanh: The unit played a critical role in major operations near Quang Tri and Khe Sanh in Vietnam, often operating in conjunction with Marine and ARVN units. • First to Field M551 Sheridan: The 5/77th was among the first U.S. units to field the M551 Sheridan light tank in combat, testing its capabilities in the harsh conditions of Vietnam. • Decorations: The battalion was awarded the Republic of Vietnam Cross of Gallantry with Palm Unit Citation for its valor and effectiveness in combat. • Post-Vietnam Assignments: Following Vietnam, the battalion served in several posts in the United States and Germany, adapting to new technology and Cold War missions. • Deactivation and Reflagging: The 5/77th Armor Battalion was inactivated in the 1980s as part of Army restructuring, with its lineage and honors maintained by other units. • Veterans’ Legacy: Veterans of the battalion have remained connected through reunions and online communities, preserving the history and camaraderie of their service. • Lasting Impact: The battalion’s actions in Vietnam and its role in armored warfare have been studied in military academies, highlighting lessons in combined arms operations and armored tactics.