Paratroopers with Charlie Battery, 4th Battalion, 319th Airborne Field Artillery Regiment, 173rd Airborne Brigade, emplace a 105mm howitzer during training March 16 at Grafenwoehr Training Area, Germany, in preparation for firing the gun. The 173rd Airborne Brigade is the Army Contingency Response Force in Europe, providing ready forces across the U.S. European, Africa and Central Commands areas of responsibility.