The United States Army Reserve (USAR) is the Federal Reserve Force of the United States Army. The National Guard includes the Army National Guard of the United States and the Air National Guard of the United...

The US Army and the US Marines are two different segments of the United States Armed Forces. The US Army is responsible for all land-based military operations. The Marines are a highly mobile amphibious attack...

The Navy Seals and the Delta Force are two different types of special operation forces that are part of the US Armed Forces. The main difference between the two is that the Navy Seals is a special operations...