PITTSBURGH INTERNATIONAL AIRPORT AIR RESERVE STATION, Pa. -- Lt. Col. Frank Mercurio, right, assumed command of the 911th Logistics Readiness Squadron during a dual promotion and assumption of command ceremony at the Pittsburgh International Airport Air Reserve Station, Pa., Dec. 7, 2019. The assumption of command ceremony is largely symbolic and provides Airmen the opportunity to speak with and welcome their new commander. Mercurio's date of rank was before the assumption of command ceremony, but they held a promotion ceremony at the same time to give recognition to his achievements over the length his career with the 911th Airlift Wing.