Col. John F. Robinson, commander of the 911th Airlift Wing, Marjorie Schurr, chief of the 911th AW Public Affairs, Charlie Krisfalusi, real property maintenance manager with the EAST Operations and Maintenance, and Allison Yeckel, environmental engineer with the 911th Civil Engineering, participate in a tree planting ceremony at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, April 27, 2021. The ceremony represented the Air Force Reserve’s commitment to environmental sustainability and the base’s commitment to it as well. (U.S. Air Force photo by Senior Airman Grace Thomson)