US Navy 090627-N-6692A-057 Marines from the 31st Marine Expeditionary Unit (MEU) fast-rope from a CH-46 Sea Knight helicopter during visit board search and seizure training aboard the amphibious dock landing ship USS Tortuga (L
Автор: U.S. Navy photo by Mass Communication Specialist 1st Class Geronimo AquinoСсылка на источник: commons.wikimedia.org