Col. Andrew Purath, 11th Wing and Joint Base Andrews commander, speaks during a ceremonial commemoration for the first wetlands mitigation banking instrument for the Department of Defense in Maryland on JBA, Sept. 6, 2018. The banking instrument will be constructed on the Mattawoman Creek in Pomfret, Md., and will be used as wetlands credits for future JBA construction products requiring wetland areas to be filled on base. (U.S. Air Force photo by Airman 1st Class Michael S. Murphy)