Complex sentence: In addition to the USAF refueling boom, the KC-10's hose-and-drogue system allows refueling of U.S. Navy, Marine Corps, and most allied aircraft, all in one mission.
Split into simpler sentences: In addition to the USAF refueling boom, the KC-10's hose-and-drogue system allows refueling of U.S. Navy, Marine Corps, and most allied aircraft. This gives the KC-10 the ability to refuel US and other NATO aircraft, all in one mission.