Complex sentence: After basic school, he served as a platoon leader at San Diego Marine Corps Base, then served in the South Pacific with the 2nd Marine Brigade during World War II, seeing action in Guadalcanal, Vella Lavella, and Bougainville as a rifle company commander.
Split into simpler sentences: After basic school, he served as a platoon leader at San Diego Marine Corps Base. He served in the South Pacific with the 2nd Marine Brigade during World War II, seeing action in Guadalcanal, Vella Lavella, and Bougainville as a rifle company commander.