The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. It is the largest and most capable navy in the world, with the highest combined battle fleet tonnage and the world's largest aircraft carrier fleet. The U.S. Navy has the world's largest number of deployable combat vessels and is the world's foremost blue-water navy.
The mission of the U.S. Navy is to maintain, train, and equip combat-ready naval forces capable of winning wars, deterring aggression, and maintaining freedom of the seas. The Navy is responsible for conducting prompt and sustained combat operations at sea, as well as providing forward presence to deter aggression and protect U.S. interests.
The Navy is organized into three fleets: the Pacific Fleet, the Atlantic Fleet, and the Naval Forces Central Command. The Navy also operates several specialized commands, such as the Naval Special Warfare Command, the Naval Air Systems Command, and the Naval Sea Systems Command. The Navy also operates several bases and stations around the world, including the Naval Station Norfolk in Virginia and the Naval Air Station North Island in California.