Complex sentence: Following the Christmas in 1939, Larson joined the Sea School Detachment at Norfolk Navy Yard and subsequently assumed command of the Marine Detachment aboard the aircraft carrier "USS Wasp" under Captain John W. Reeves.
Split into simpler sentences: Following the Christmas in 1939, Larson joined the Sea School Detachment at Norfolk Navy Yard and subsequently assumed? Command of the Marine Detachment aboard the aircraft carrier "USS Wasp" under Captain John W. Reeves.