U.S. Army Spc. Joseph Prieto watches a row of monitors. U.S. Army Spc. Joseph Prieto watches a row of monitors in the communications department of the Yuma Sector Border Patrol Station in Arizona on July 27, 2006. Prieto is assigned to the Wisconsin Army National Guard, which will be patrolling the Arizona-Mexico border with the Border Patrol in support of Operation Jump Start. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 541962-W-DYC82-425.jpg Photo Gallery