Second Lt. Alea Nadeem neutralizes the threat posed by DoD Officer Steven Haymes, playing an armed suspect, while Officer Yvette Perez provides coverage during the military operations in urban terrain (MOUT) training April 22. They are part of the 61st Security Forces Squadron team competing in this year's Guardian Challenge May 16 through 19 at the Air Force Space Command in Colorado Springs, Colo. (Photo by Joe Juarez)