Headquartered in Indianapolis, the Indiana Air National Guard is made up of the 181st Fighter Wing in Terre Haute, Ind., and the 122nd Fighter Wing flying units. Both units maintain fleets of F-16 fighter jets. The Air National Guard has been a part of United States history since the Revolutionary War. Today s Air National Guard is a separate reserve component of the U.S. Air Force. There are more than 140 Air Guard units throughout the U.S. and its territories. While missions vary from unit to unit, some interesting ones include pararescue missions, modular airborne firefighting support, combat communications and air traffic control.