Description: Navy SEALs new underwater stealth vehicle? | MilTech, How US Navy Nuclear Submarine Gets Food Deep Underwater, Life Inside $4 Billion US Submarine Underwater for Months, Special Forces Navy SEALs Underwater Infiltration: SEAL Delivery Vehicle (SDV) - 特殊部隊ネイビーシールズの水中潜入
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The United States Navy ( USN ) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States . The U.S. Navy is the largest, most capable navy in the world, with the highest combined battle fleet tonnage . The U.S. Navy has the world's largest aircraft carrier fleet, with ten in service , two in the reserve fleet , and three new carriers under construction. The service has 328,194 personnel on active duty and 101,199 in the Navy Reserve .
The U.S. Navy traces its origins to the Continental Navy , which was established during the American Revolutionary War and was essentially disbanded as a separate entity shortly thereafter. It played a major role in the American Civil War by blockading the Confederacy and seizing control of its rivers. It played the central role in the World War II defeat of Japan. The 21st century U.S. Navy maintains a sizable global presence, deploying in such areas as East Asia, the Mediterranean, and the Middle East. It
Navy blue is a very dark shade of the color blue .