An improvised explosive device detonates near a Paladin M109A6 armored track vehicle during a convoy with the Alpha Battery, 1st Battalion, 41st Field Artillery Regiment, 1st Armored Brigade Combat Team of the 3rd Infantry Division, as the unit conducts multi-level training, May 21. The exercise was part of Combined Resolve IV where more than 4,700 participants from 13 NATO allies and partner nations conduct training at Hohenfels Training Area.