US+Navy

__US Navy__
 * The responsibilities of the navy are to remain the freedom of the seas and national security.
 * The navy delivers supplies to US troops around the world.
 * During wars the navy's job is to attack enemy ships and prevent attacks on the sea.

__How the Navy is Organized__
 * The Department of the Navy has three parts: These are the Navy Department, the Operating Forces, and the Shore Establishment.
 * The Navy Department is the central executive and administrative office of the Navy, which includes the highest ranking naval officials.
 * The Operating Forces are responsible for carrying out such naval operations as may be necessary to support national policy and to defend the United States and its interests around the world.
 * Uniformed personnel include commissioned officers, enlisted personnel, warrant officers, and limited duty officers.
 * Commissioned officers direct and supervise activities.
 * Enlisted personnel perform a wide variety of tasks.
 * Warrant officers are technical specialists selected from the enlisted ranks.
 * Limited duty officers are technical managers selected from the enlisted or warrant-officer ranks.

__Categories of Naval Officers__


 * Unrestricted line officers are eligible for command at sea within areas of surface, aviation, submarine, and special operations warfare expertise.
 * Restricted line officers must be qualified to perform highly specialized jobs, such as aeronautical engineering. They may command some noncombatant vessels.
 * Staff officers specialize in medical service, civil engineering, law, theology, and other areas, but they cannot command at sea.

__Weaponry__


 * The aircraft carrier serves as a mobile, floating air base for naval aircraft.
 * Battleships are large and heavily armored surface warships that carry 5-inch and 16-inch guns and cruise missiles to attack enemy ships.
 * Cruisers destroy enemy aircraft, missiles, submarines, and surface ships.
 * Destroyers provide anti-air, anti-surface, and anti-submarine warfare action because of their quick speed.
 * Frigates escort other warships, including amphibious warships, which deliver troops, weapons, and vehicles to enemy-defended beaches.
 * Nuclear attack submarines destroy enemy surface ships and enemy submarines and protect sea lines of communication.
 * Ballistic missile submarines attack enemy strategic targets with long-range missiles.