Marine Reservists prepare to board a CH-53E Super Stallion helicopter during an air assault course as part of the final battalion exercise of Integrated Training Exercise 4-17 at Camp Wilson, Marine Air Ground Combat Center, Twentynine Palms, Calif., June 21, 2017. The helicopter crew is assigned to Heavy Marine Helicopter Squadron 772, Marine Aircraft Group, 4th Marine Air Wing. Marine Corps photo by Lance Cpl. Stanley Moy