training exercises (FTX's) from 24 to 72 hours in length. Advanced training Advanced training may include: US Army Ranger School USMC Mountain Survival Course USMC Mountain Leader Course US Army Jumpmaster Course US Army Reconnaissance & Surveillance Leaders Course (RSLC) US Army Pathfinder School Helicopter Rope Suspension Training (HRST) Masters Course Coxswain Course Maritime Navigator Course Organization There are currently three Radio Battalions, two with their own RRPs. 1st Radio Battalion, I Marine Expeditionary Force (MEF), is located at Camp Pendleton, California. 2nd Radio Battalion, II MEF, is located at Camp Lejeune, North Carolina. Owing to a restructuring of the entire Radio Battalion organization, the former 1st Radio Battalion, with its RRP, moved from Marine Corps Base Hawaii in Kāneohe Bay to Camp Pendleton in October 2004. The RRP has since been reestablished in 3rd Radio Battalion, Kaneohe HI. The RRTs of 1st and 3rd Radio Battalions still deploy in support of III MEF's 31st Marine Expeditionary Unit Alpha and Bravo cycles based in Okinawa. 1st Radio Battalion also deploys RRT's in support of I MEF's rotating 11th, 13th and 15th Marine Expeditionary Units. A six-man Radio Reconnaissance Team (RRT) is typically composed of a Team Leader (Staff Sergeant or Sergeant), Assistant Team Leader (Sergeant or Corporal), Point Man, Navigator, Radio-Telegraph Operator (RTO), and Assistant RTO. History Lt. General Alfred M. Gray, Jr., Commanding General of Fleet Marine Force, Atlantic (FMFLant) and future Commandant of the Marine Corps, and Lt. Col. Bill Keller, Commanding Officer of 2nd Radio Battalion, FMFLant, met at Marine Corps Air Station Cherry Point in the spring of 1984 to welcome home the returning members of the 2nd Radio Battalion Detachment from Beirut, Lebanon. The Marines of 2ndRadio Battalion had conducted tactical cryptologic operations in support of the entire deployment of the US peacekeeping force in Beirut since the initial landings at Beirut International Airport. During the wait, Gray and Keller were discussing the various problems faced by the Radio Battalion detachment. Both agreed that the most significant problem was the lack of a tactical cryptologic database available from national and theater assets prior to the Marines' landing in Beirut. Equally significant were the unconventional aspects of the communications networks used by the various factions in Beirut. Those that posed the greatest threat to the Marines did not abide by standard military communications procedures, nor did they follow set frequencies or call signs. Because the detachment