Battle for FSB Mary Ann w VN SVC Tank Top

The Battle of FSB Mary Ann occurred when Viet Cong (VC) sappers attacked the U.S. firebase located in Quảng Tín Province, South Vietnam early on the morning of 28 March 1971. On the early morning of 28 March sappers from the VC 409th Sapper Battalion approached the wire of FSB Mary Ann and took up positions to launch an attack. The exact number of sappers involved is uncertain, but most sources agree that there were at least 50. As was common practice for such units, the sappers wore khaki shorts and soot camouflage and were armed with either an AK-47 or RPG-7 and satchel charges and grenades to attack bunkers. Sappers relied on stealth, shock and surprise to give them an advantage, and rarely carried heavy weapons or equipment.