The Unite States Army is the largest, and by some standards, the oldest established branch of the armed forces of the United States and is one of seven uniformed services. Like all armies, it has the primary responsibility for land-based military operations. The modern Army had its roots in the Continental Army which was formed on June 14, 1775, before the establishment of the United States, to meet the demands of the American Revolutionary War. Congress created the United States Army on June 14, 1784 after the end of the war to replace the disbanded Continental Army. The Army considers itself to be descended from the Continental Army, and thus dates its inception from the origins of that force.