 Complete the following phrase:  On May 1, 1943, the 1st Battalion, 25th Marines was formed at Camp Lejeune, North Carolina, and was then shipped off to Camp Pendleton, California, to be assigned to the 4th Marine Division. During the war, the 1st Battalion, 25th Marines saw action in the following Island-hopping campaigns: Kwajalein, Battle of Saipan, 