State Defense Forces
State Defense Forces (SDFs) also known by names such as State Guard, Guard Reserve, or Governor’s Guards are state military organizations operating under the sole authority of their respective Governors. They are held to the same military standards and regulations as the Army and Air National Guard of their state, but unlike the National Guard, they cannot be federalized by the President of the United States. Established in 1917 and serving through both World Wars, SDFs continue to provide critical support to the National Guard, acting as a force multiplier during peacetime by responding to natural disasters, hurricanes, tornadoes, and other statewide emergencies. They also augment civilian authorities, including state and local law enforcement and departments of corrections. In times of war, when the National Guard is federally deployed, SDFs assume The National Guards in-state military roles and responsibilities to ensure continuity of mission and security until the National Guard’s return from deployment.