A U.S. Air Force F-15 Eagle aircraft takes off for a mission. A U.S. Air Force F-15 Eagle aircraft takes off for a mission from Hyakuri Air Base, Japan, during Exercise Keen Sword 05 on Nov. 17, 2004. Keen Sword 05 is designed to increase the defensive readiness of Japanese and American forces through training in air, ground, and sea operations and improve interoperability between the two countries' forces. The F-15 is assigned to the 67th Fighter Squadron, Kadena Air Base, Japan. SHARE: Download: Full Size (0.12 MB) Credit: VIRIN: 530286-W-WOP20-141.jpg Photo Gallery