Explosive Ordnance Disposal Mobile Unit 1 sailors, with Canadian and New Zealand service members, prepare for nighttime training dives during amphibious exercise Dawn Blitz. Dawn Blitz is a scenario-driven exercise led by U.S. 3rd Fleet and 1 Marine Expeditionary Force that will test participants in the planning and execution of amphibious operations through a series of live training events. (U.S. Navy photo by Mass Communication Specialist 2nd Class Joshua Scott/Released)