The Indian Long Range Squadron or ILRS was a unit of the British Indian Army during World War II. It was formed by asking for volunteers from the 2nd Lancers, 11th Cavalry and the 18th Cavalry all part of the 3rd Indian Motor Brigade. It was originally formed to patrol the borders between the Soviet Union and Persia and Afghanistan. Their first known deployment was in January 1942, involving a very small party, which provided an escort to an Indian Office civil servant, the diplomat Sir Clarmont Skrine. The party traveled by road from Quetta in modern-day Pakistan through the ‘East Persian Corridor’, one of the many Allied supply routes to the Soviet Union through Persia, to take up his post as British consul-general in Mashhad, a large city in north-east Persia near the borders with Afgha