The United States Navy is the naval warfare branch of the U.S. Armed Forces. It is responsible for protecting the country's interests at sea and ensuring maritime security. The Navy operates a variety of ships, submarines, and aircraft, and its personnel are trained for various missions, including combat, humanitarian assistance, and disaster relief. Founded in 1775, the Navy has played a crucial role in many conflicts throughout American history, including the American Revolutionary War and World War II. Today, it continues to maintain a global presence, working alongside allied nations to promote peace and stability on the world's oceans.