A U.S. Army CH-47 Chinook helicopter carries a sling-loaded shipping container during retrograde operations in the Wardak province A U.S. Army CH-47 Chinook helicopter carries a sling-loaded shipping container during retrograde operations and base closures in the Wardak province of Afghanistan on Oct. 26, 2013. The Chinook is assigned to the 10th Combat Aviation Brigade. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 707788-P-ZYX39-769.jpg Photo Gallery