Air Search For Viet Cong: U.S. helicopters loaded with 1st Cavalry reconnaissance troops patrol along the South China Sea beach, scouting for a Viet Cong squad that had been sighted earlier in the area. The 1st Cavalry Division is conducting a three-month operation in South Vietnam’s Binh Dinh province about 300 miles northeast of Saigon | Harvard Art Museums | KenAI