U.S. Navy sailors assigned to Maritime Expeditionary Security Squadron (MSRON) 3 provide security watch for an entry control point on a simulated forward operating base in San Diego during a Navy Expeditionary Combat Command integrated exercise on April 21, 2010. The weeklong training exercise, being held April 19-23, provides Navy Expeditionary sailors realistic combat training in preparation for upcoming deployments. Sailors assigned to MSRON-3 deploy globally to provide mobile security and defense capabilities to Navy assets worldwide.