In military organizations, a pathfinder is a specialized soldier inserted or dropped into place in order to set up and operate drop zones, pickup zones, and helicopter landing sites for airborne operations, air resupply operations, or other air operations in support of the ground unit commander. Pathfinders first appeared in World War II, where they served with distinction, and continue to serve an important role in today's modern armed forces, providing commanders with the option of flexibly employing air assets. History United Kingdom During the Second World War small groups of parachute soldiers were formed into pathfinder units, to parachute ahead of the main force. Their tasks were to mark the drop zones (DZ) or landing zones (LZ), set up radio beacons as a guide for the aircraft carrying the main force and to clear and protect the area as the main force arrived. The units were formed into two companies to work with the two British airborne divisions created during the war, the 1st and 6th. The 21st Independent Parachute Company was formed in June 1942 and became part of the 1st Airborne Division, then commanded by Major General Frederick "Boy" Browning, considered to be the father of the British Army's airborne forces. The 22nd Independent Parachute Company was raised in May 1943 and was part of the 6th Airborne Division, under the command of Major General Richard "Windy" Gale. During the Allied invasion of Sicily (codenamed 'Operation Husky') the 21st Independent Parachute Company parachuted ahead of the main force during Operation Fustian to capture the Primosole Bridge on the night of 13/14 July 1943. They then took part in Operation Slapstick, part of the Allied invasion of Italy, landing by sea at Taranto on 9 September. The company, with most of the rest of the 1st Airborne Division, after fighting briefly in the early stages of the Italian Campaign, returned to the United Kingdom in December 1943, but left an independent platoon behind in Italy to work with the 2nd Independent Parachute Brigade Group. Held in reserve and unused for the Allied Operation Overlord, the invasion of Normandy, the company took part in Operation Market Garden, landing at the Dutch town of Arnhem on the night of 17 September 1944. After marking the DZs and LZs the company was trapped with the rest of the division in the Oosterbeek Perimeter, suffering heavy casualties in what is now known