624th Civil Engineer Squadron Reservists Staff Sgt. Roy Shin, 380th Expeditionary Civil Engineer Squadron heating, ventilation, and air conditioning technician, and Senior Airman Elo Badua, 380th ECES HVAC technician, performs maintenance on an air conditioning unit, Jan. 10, 2019 at Al Dhafra Air Base, United Arab Emirates. The 624th CES members work as firefighters, and in structures, water and fuels maintenance, pavement and equipment, and heating, ventilation, and air conditioning shops. Being deployed offer many Reservist the opportunity to increase their skillset. (U.S. Air Force photo by Tech. Sgt. Darnell T. Cannady)