USS Mesa Verde (LPD-19), left, and USS Bataan (LHD-5), right, sail ahead of USS Carter Hall (LSD-50) in a formation simulating strait passage Dec. 7, 2016 at sea during Amphibious Ready Group Marine Expeditionary Unit Exercise. Several role players in small raid craft as well as other larger vessels populated the area of operation, surrounding the ships to simulate threats and attacks on the ARG during the drill. ARGMEUEX is a three-week training evolution intended to build upon previous relationships, thereby enhancing Navy and Marine Corps’ interoperability and amphibious warfare capabilities to tackle a wide range of operations during their upcoming deployment. (U.S. Marine Corps photo by Sgt. Matthew Callahan)