ImagesMilitary History “Heavenly Herd” River Crossing Paratroopers of the U.S. 2nd Battalion, 173rd Airborne Brigade hold their automatic weapons above water as they cross a river in the rain during a search for Viet Cong positions in the jungle area of Ben Cat, South Vietnam, Sept. 25, 1965. ( AP / Henri Huet) September 14, 2011 Chris Carter 173rd Airborne Brigade, Vietnam War