The Michigan Defense Force is a professionally-trained branch of the Michigan Military establishment along with the Michigan Army National Guard and Air National Guard.
To provide ready and able military forces to assist state and local authorities in times of state emergencies and to augment the Michigan Army National Guard and Michigan Air National Guard as required.
Michigan law provides that the state military establishment “…consists of the Army National Guard, Air National Guard, and the Defense Force.” (MCL 32.509) The Michigan State Defense Force (MIDF) is established pursuant to the Michigan Military Act (MCL 32.509 et. seq.) as authorized by 32 USC sec 109. The Governor of the State of Michigan is the Commander in Chief of the defense force, and it operates under the direction of the State of Michigan Adjutant General (TAG).