U.S. Marines Lance Cpl. David Charbonneau, left, and Private First Class Kenneth Scott, right, both military policemen with Marine Wing Support Squadron 472, Marine Aircraft Group 49, 4th Marine Aircraft Wing mount an Mk 19 grenade launcher on Range 106 during Integrated Training Exercise 4-19 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 13, 2019. ITX measures the ability to provide a cohesive, trained and ready capability in support of service and Combatant Commander requirements. (U.S. Marine Corps photo by Cpl. Tessa D. Watts)