October 1966 — U.S. Marines unleash the power of the M2 .50 caliber machine gun in Vietnam. Known as “Ma Deuce,” this heavy machine gun had already served through World War II and Korea — and in the jungles and firebases of Vietnam, it was still the king of the battlefield. The steady thump of the .50 meant security on the perimeter, convoy protection on the open road, and sheer firepower when everything else failed. #VietnamWar #USMC #MaDeuce #M2Browning #Firepower #1966 #GhostsOfTheBattlefield