Title 10 and Title 32 of the U.S. Code, state National Guard serves as part of the first-line defense for the United States.The National Guard of the United States is a joint reserve component of the United States Army and the United States Air Force and maintains two subcomponents: the Army National Guard of the United States for the Army and the Air Force’s Air National Guard of the United States.
The state National Guard is divided into units stationed in each of the 50 states and US territories, and operates under their respective state governoror territorial adjutant general.The National Guard may be called up for active duty by state governors or territorial adjutant general to help respond to domestic emergencies and disasters, such as hurricanes, floods, and earthquakes
Presidents who have served as Guardsmen
Militia service was a common trait among presidents of the United States. Eighteen of America’s 44 presidents have served in colonial or state militias and two have served in the National Guard since it was established in 1903. Among these, three served in colonial militias (George Washington, Thomas Jefferson and James Madison), 15 served in state militias, one in the Army National Guard (Harry S. Truman) and one (George W. Bush) served in the Air National Guard.