(U.S. Marine Corps photo by Cpl. Ryan G. Coleman/Released)

U.S. Marines with Medium Marine Tiltrotor Squadron 264, 22nd Marine Expeditionary Unit (MEU) fires stinger simulation rounds aboard the USS Wasp (LHD-1) on April 17, 2016.

(U.S. Marine Corps photo by Cpl. Ryan G. Coleman/Released)

The 22nd MEU and Amphibious Squadron Six (PHIBRON-6) are underway for Amphibious Ready Group (ARG)/MEU Exercise.