Members of the 169th Security Police Squadron, South Carolina Air National Guard, McEntire Air National Guard Base, South Carolina, deployed to Indian Springs Air Force Auxiliary Field, Nevada, assume defensive positions beside a gravel road. Personnel are armed with 5.56 mm M16 rifles and a 7.62 mm M60 machine gun, all with blank firing attachments. Vehicels in background include, M1025 High-Mobility Multipurpose Wheeled Vehicle (HMMWV), 23 April 1999