TERRE HAUTE, IN, UNITED STATES -- Airmen assigned to the 181st Intelligence Wing, Indiana Air National Guard, participate in a retirement ceremony for U.S. Air Force Col. Christopher R. Alderdice at Hulman Field Air National Guard Base, Ind., Oct. 5, 2019. Prior to his retirement, Alderdice served as the commander of the 181st IW. (U.S. Air National Guard photo by Senior Airman Jonathan W. Padish)