Merrimack, N.H., native Spc. William McGregor, an infantryman with the Vilseck, Germany-based 1st Squadron, 2nd Stryker Cavalry Regiment, attached to the 82nd Airborne Division's 2nd Brigade Combat Team, shields himself from the dust kicked up by a medical evacuation helicopter as it takes off from a coalition outpost in Baghdad with a wounded Soldier inside, Oct. 31.