EVACUATION FLIGHT A U.S. Army CH-47 Chinook helicopter evacuates Pakistani civilians over a mountain pass in Pakistan, Aug. 5, 2010. Humanitarian relief and evacuation missions are being conducted as part of the disaster relief efforts to assist Pakistanis in flood-stricken regions of the nation. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 926029-X-YJW54-537.jpg Photo Gallery