Bulgarian (BGR) Sergeant (SGT) Todor Videv, with Radio Communications, secures the Bulgarian national flag on a high frequency van in the Regional Group Forward (RGF) area at Camp Sarafovo, Bulgaria (BGR). Combined Endeavor 2004, is a US European Command-sponsored exercise, designed to identify and document command, control, communications, and computer (C4) interoperability between North Atlantic Treaty Organization (NATO) and Partnership for Peace nations