U.S. Army Sgt. Gregory Press, 7th Transportation Brigade (Expeditionary) cargo specialist, throws a practice hand grenade as part of the Siegesrader challenge at Fort Eustis Va., Nov. 1, 2016. The challenge was comprised of Army warrior tasks, battle drills and focused on unit cohesion and effectiveness. (U.S. Army photo by Spc. Wilmarys Roman Rivera)