335th RRC

• Origins in the Vietnam War: The 335th Radio Research Company (RRC) was activated during the Vietnam War as part of the U.S. Army Security Agency, specializing in signals intelligence (SIGINT) and electronic warfare. • Nickname "Cowboys": The 335th RRC was known by its radio call sign and nickname "Cowboys," a moniker that became synonymous with their daring missions. • Based in Bien Hoa: The unit was primarily stationed at Bien Hoa Air Base, a strategic location for monitoring enemy communications in South Vietnam. • Critical Role in Tet Offensive: During the 1968 Tet Offensive, the 335th provided key intelligence that helped American and South Vietnamese forces respond to widespread attacks. • Aviation Assets: The unit operated a fleet of specially equipped aircraft, including RU-8D Seminoles and U-21s, for airborne radio direction finding and signals collection missions. • Cooperation with ARVN: The 335th RRC often worked closely with the Army of the Republic of Vietnam (ARVN), sharing intelligence and conducting joint operations. • Highly Decorated Unit: The "Cowboys" received numerous awards, including Meritorious Unit Commendations, for their outstanding performance and bravery. • Dangerous Missions: Members of the 335th often flew low and slow over hostile territory, making them frequent targets for enemy ground fire and earning them a reputation for courage under fire. • Legacy in Modern SIGINT: Many techniques and tactics pioneered by the 335th RRC served as the foundation for modern military signals intelligence operations. • Post-War Associations: Veterans of the 335th RRC remain active today, holding reunions and maintaining websites to preserve the unit’s unique history and camaraderie.