Lance Cpl. Matt Nelson, a helicopter crew chief with

Lance Cpl. Matt Nelson, a helicopter crew chief with Marine Light Attack Helicopter Squadron 775, Marine Aircraft Group 41, 4th Marine Aircraft Wing, prepares the GAU-17 on a UH-1Y Venom pre-flight, during Integrated Training Exercise 4-18 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 15, 2018. ITX 4-18 provides Marine Air Ground Task Force elements an opportunity to undergo a service-level assessment of core competencies that are essential to expeditionary, forward-deployed operations. (U.S. Marine Corps photo by Lance Cpl. Samantha Schwoch/released)