What is the standard branch of the U.S. military responsible for land-based operations?

The U.S. Army is the standard branch of the military primarily responsible for land-based operations. Founded in 1775, it plays a crucial role in ground warfare and is tasked with the defense of the United States and its interests through land engagements. The Army is equipped with a wide array of personnel, equipment, and technology designed for various combat scenarios, making it the primary force for terrestrial military operations.

In contrast, the U.S. Navy primarily focuses on naval and maritime operations, the U.S. Air Force specializes in aerial and space operations, and the U.S. Marine Corps serves as a rapid-reaction force trained for land and amphibious operations, but it operates under the Department of the Navy. While all these branches work together for joint operations, the U.S. Army remains the central entity for sustained land missions.