The United States Army is the land warfare branch of the United States Armed Forces. It is responsible for protecting and defending the country, conducting military operations, and supporting national policies. The Army is made up of active-duty soldiers, reserve forces, and the National Guard, all of whom are trained to respond to various threats and emergencies. Founded in 1775, the Army has played a crucial role in many significant conflicts, including the American Revolutionary War, the Civil War, and both World Wars. Its mission includes not only combat operations but also humanitarian assistance and disaster relief efforts, showcasing its commitment to both national and global security.