mexican border duty

U.S. Army Sgt. Alan Burke, Private David Prater, Sgt. Chris McNinch, and Spc. Walter Nichols, all with the Michigan Army National Guard, undergo entry identification team training in Phoenix, Ariz., Feb. 21, 2007, in support of Operation Jump Start. The training teaches U.S. Customs and Borders Patrol procedures while observing the Arizona-Mexico border for illegal activity. (U.S. Air Force photo by Senior Airman Trisha Harris) www.army.mil