US Marine Corps (USMC) 26th Marine Expeditionary Unit (MEU) AAV7A1s (Assault Amphibian Vehicle) maneuver into position to enter the well deck of an amphibious assault ship currently conducting Maritime Security Operations in the Persian Gulf. The AAV7A1s are armored assault amphibious full-tracked landing vehicles. The vehicles carry troops in water operations from ship to shore, through rough water and surf zone. They also carry troops to inland objectives after going ashore