U.S. Air Force Lt. Col. Paul A. Frantz, 718th Civil Engineer Squadron commander, addresses the Joint Okinawa Housing Community Mar. 8, 2019. The 18th Civil Engineer Group is the largest civil engineer unit in the Air Force, totaling more than 450 military and 1,000 civilians and local nationals. (U.S. Air Force video by SSgt Daniel E. Fernandez) More