A U.S. soldier sweeps snow from a CH-47 Chinook helicopter on Bagram Airfield, Afghanistan, Feb. 6, 2013. The soldiers are assigned to the 101st Airborne Division's 159th Combat Aviation Brigade. A U.S. soldier sweeps snow from a CH-47 Chinook helicopter on Bagram Airfield, Afghanistan, Feb. 6, 2013. The soldiers are assigned to the 101st Airborne Division's 159th Combat Aviation Brigade. SHARE: Download: Full Size (2.9 MB) Tags: Photo Essays Credit: VIRIN: 841150-L-QUS76-728.jpg Photo Gallery