Chris Swain, Federal Facilities Program Manager with the Main Department of Environmental Protection meets with Air Force, federal and state environmental restoration personnel at the Air Force Eastern Regional Environmental Restoration Summit in Chicago, Ill., July 23-24, 2019. The Air Force Civil Engineer Center reintroduced the summits - an eastern, western and central - in 2016 in an effort to strengthen relationships between the agencies.(U.S. Air Force photo by Malcolm McClendon)