Complex sentence: From that assignment, Captain Sustad became Adjutant of Marine Corps Base, Camp Pendleton, California, and upon activation of the first post-World War II Women Marine Company at Camp Pendleton, she became its Commanding Officer, serving in this capacity until August 1952.
Split into simpler sentences: From that assignment, Captain Sustad became Adjutant of Marine Corps Base, Camp Pendleton, California. Upon activation of the first post-World War II Women Marine Company at Camp Pendleton, she became its Commanding Officer, serving in this capacity until August 1952.