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Marines embark on an MV-22 Osprey tiltrotor aircraft assigned to the “Sea Elks” of Marine Medium Tiltrotor Squadron (VMM) 166 on the flight deck of the Wasp-class amphibious assault ship USS Essex (LHD 2) during Dawn Blitz 2017. Dawn Blitz is a scenario-driven exercise designed to train and integrate Navy and Marine Corps units by providing a robust training environment where forces plan and execute an amphibious assault, engage in live-fire events, and establish expeditionary advanced bases in a land and maritime threat environment to improve naval amphibious core competencies.