CHARLESTON, S.C.-- U.S. Army Reserve Soldiers with the 159th Military Police Battalion Criminal Investigation Command located in Terre Haute, Ind., divide into two person teams to conduct counter-surveillance operations by attempting to identify several surveillance vehicles and personnel during Guardian Shield 2016, July 26 2016. Guardian Shield is a training event, based at the Federal Law Enforcement Center in Charleston, S.C., focused on core competencies for special agents.