U.S. Marines with 3rd Marine Regiment salute and present

U.S. Marines with 3rd Marine Regiment salute and present their unit colors during a battle color ceremony for Bougainville Day, Marine Corps Base Hawaii, Nov. 1, 2017. Bougainville Day is the 75th Anniversary of the unit and 74th anniversary of the Battle of Bougainville. The battle happened on Nov. 1, 1943, when 3rd Marines landed at Empress Augusta Bay, Bougainville, to establish a beachhead, fending off thousands of Imperial Japanese soldiers. (U.S. Marine Corps photo by Cpl. Jesus Sepulveda Torres)