Fertile Keynote Exercise
F-16 Aircraft #87-261 from the Wisconsin Air National Guard's 115th Fighter Wing in Madison, Wis. intercepts a simulated non-responsive civilian aircraft during a Fertile Keynote Exercise Oct.18, 2011. The exercise tests the readiness of personnel assigned to the Air Control Alert mission, to rapidly respond to potential aircraft threats approaching or operating within U.S. or Canadian airspace. (Photo by Capt. David Berget, Lacrosse Composite Squadron, Wisconsin Wing Civil Air Patrol)