Bohn was later transferred to the 3rd Battalion under Lieutenant Colonel Robert Taplett and appointed commanding officer of "G" Company. With the outbreak of the Korean War, Bohn sailed to Korea with his company and took part in the Battle of Pusan Perimeter within 1st Marine Division under Major General Oliver P. Smith in August 1950 and his task was to lead his "G" Company up to the hill held by enemy in the vicinity of Kosong. Advancing under enemy rifle and machine gun fire, Bohn was wounded in the shoulder and neck, but refused to be evacuated and continued to personally lead and deploy his troops in an effective attack. Only until all enemy forces were annihilated did he allow himself to be taken to the rear and his wounds to be dressed. For this act of valor, Lieutenant Bohn was decorated with the Silver Star.