The United States Marine Corps (USMC) is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms. The USMC has around 182,000 active duty members and some 38,500 personnel in reserve.
Military transport aircraft or military cargo aircraft are used to airlift troops, weapons and other military equipment to support military operations. Transport aircraft can be used for both strategic and tactical missions, and are often diverted to civil emergency relief missions.
Aerial refueling is the process of transferring aviation fuel from one military aircraft (the tanker) to another (the receiver) during flight. The two main refueling systems are probe-and-drogue, which is simpler to adapt to existing aircraft.