As seen through a night-vision device, a U.S. Army CH-47 Chinook helicopter flies over AH-64 Apache helicopters to conduct an air assault during NATO exercise Steadfast Javelin II on Lielvarde Airbase, Latvia, Sept. 7, 2014. As seen through a night-vision device, a U.S. Army CH-47 Chinook helicopter flies over AH-64 Apache helicopters to conduct an air assault during NATO exercise Steadfast Javelin II on Lielvarde Airbase, Latvia, Sept. 7, 2014. SHARE: Download: Full Size (2.3 MB) Tags: photo essays Credit: VIRIN: 938419-Y-OTB82-916.jpg Photo Gallery