Complex sentence: Over the next two years, "Argonne" operated with the Naval Transportation Service on the through service between New York and Manila, she and the transport USS Chaumont (AP-5) providing this important service to the fleet.
Split into simpler sentences: Over the next two years, "Argonne" operated with the Naval Transportation Service on the through service between New York and Manila. Along with the transport USS Chaumont (AP-5), "Argonne" provided this important service to the fleet.