The U.S. Army is a branch of the United States Armed Forces responsible for land-based military operations. It generates revenue through government funding allocated by the Department of Defense, which supports its missions, personnel, and technological advancements. Established in 1775, the Army has played a crucial role in major conflicts, including the Revolutionary War, World Wars, and recent global counterterrorism efforts. The Army also focuses on humanitarian missions, disaster relief, and technological innovation in defense.