Soldiers from the 616th Engineers Utilities Detachment, Illinois National Guard, Milan, Ill., and sailors from Naval Mobile Construction Battalion 11, Gulfport, Mississippi, work together June 2, 2018, to dig the foundation for a cinder block building the two units are building together in Konotop Barracks, Poland. Both are in here for Resolute Castle, a long-standing U.S. Army Europe-led cooperative training exercise designed to enhance interoperability among allies and regional partners. (Michigan National Guard photo by Staff Sgt. Tegan Kucera/Released)