U.S. Air Force Technical Sergeant Lance Wooster, 187th Air Evacuation Squadron, Cheyenne, Wyoming, receives help and instruction with his harness before sitting in an open door of a CH-47 Chinook helicopter during Patriot, Volk Field, Wisconsin, July 17, 2005. PATRIOT is the largest annual exercise held across the United States. This exercise increases the warfighting capabilities of the National Guard, reserve, and active components of the Air Force and Army. Additionally, Canadian, United Kingdom, and Dutch forces are participating, increasing combined effectiveness. (United States Air Force photo by Technical Sergeant Allen Pickert) (Released)