A Knight’s Brigade’s 515th Transportation Company Soldier signals for a driver to halt his M977 Load Handling System with Compatible Water Tank Rack, also known as the Hippo. The crew then replenished a forward operating base’s water tank for 1st Brigade, 1st Cavalry Division and multinational Soldiers at the Hohenfels Training Area for exercise, Combined Resolve II. (U.S. Army photo by 1st Lt. Henry Chan, 16th Sustainment Brigade Public Affairs, 21st Theater Sustainment Command)