An AH-1Z prepares to engage targets during an offensive air support exercise at the Chocolate Mountain Aerial Gunnery Range, California.

An MV-22 crew chief with VMM-162, surveys the flight line during a training event dubbed Assault Support Tactics 3.

Marines with Echo Company, 2nd Battalion, 3rd Marine Regiment, 3rd Marine Division embark on an MV-22B Osprey before a marine expeditionary unit exercise at Yuma.

Marines with the 1st Transport Support Battalion prepare to externally lift a Light Armoured Vehicle during a CH-53 tactics exercise at Auxiliary Airfield II near Yuma, Arizona.

CH-53E Super Stallions refuel from a KC-130J during FINEX 3 on October 22, 2016

CH-53E Super Stallions prepare to land at Marine Corps Air Ground Combat Center Twentynine Palms, California during FINEX 1.

Marines refuel a CH-53E Super Stallion at a forward arming refuelling point at a landing zone dubbed Bull Assault in California on September 27, 2016.

A CH-53E Super Stallion lands with a crate of 155mm ammunition during a CFI-53 battle drill exercise at Fire Base Burt.

A CH-53E Super Stallion lands at Yuma Proving Ground in a cloud of dust and dirt.

Marines with 1st Battalion, 11th Marine Regiment watch as a CH-53E Super Stallion lands with a M777 Flowitzer during a CFI-53 battle drill exercise at Fire Base Burt, in the Chocolate Mountain Aerial Gunnery Range.

A UH-1Y engages targets during an urban close air support exercise at Yodaville near Yuma.

A UH-1Y lands at a forward arming refuelling point during an offensive air support exercise at the Chocolate Mountain Aerial Gunnery Range, California.

A UH-1Y fires flares during an offensive air support exercise.

A UH-1Y engages targets during an offensive air support exercise as part of WTI 1-17.

An aviation ordnance chief supervises the first ever hot load on the F-35B Lightning II.

Marines conduct the first ever hot load on the F-35B Lightning II during WTI 1-17 at Marine Corps Air Station Yuma, on September 22, 2016.

An MV-22B Osprey refuels from a KC-130J during a WTI 1-17 mission.