Pvt. Duy Nguyen and Pvt. Oshane Williams conduct a chlorine test June 2, 2018, to ensure the water in the tanks are clean in order to support Saber Strike for the greater Konotop, Poland, area. The U.S. Army Europe’s annual Saber Strike exercise demonstrates U.S. commitment to NATO, deterring aggression, and to the sovereignty and security of our allies. (Michigan Army National Guard photo by Spc. Aaron Good/Released).