Gen. Dempsey peers into the cockpit of an Apache Block 3 helicopter Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey peers into the cockpit as he receives a brief on the capabilities of the Apache Block 3 helicopter during a visit to Fort Riley, Kan., on Oct. 1, 2012. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 317068-F-TIY54-044.jpg Photo Gallery