Soldiers assigned to the 4th Battalion, 319th Airborne Field Artillery Regiment, 173rd Airborne Brigade. fire an M777 howitzer during a live-fire exercise as part of Saber Junction 18 at the Grafenwoehr Training Area, Germany, Sept. 10, 2018. Exercise Saber Junction 18 is a U.S. Army Europe-directed exercise designed to assess the readiness of the U.S. Army's 173rd Airborne Brigade to execute unified land operations in a joint, combined environment and to promote interoperability with participating allies and partner nations. Army photo by Markus Rauchenberger