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U.S. Marine Corps CH-53E Super Stallion helicopters conduct aerial refueling with a KC-130J Hercules air-tanker over Marine Corps Air Station Yuma, Arizona on September 19, 2018.
This training evolution was part of Weapons and Tactics Instructor (WTI) course 1-19 which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine air-ground task force. Unit - Marine Aviation Weapons and Tactics Squadron One (MAWTS-1).