World War II resulted in an influx of non-Inuit to the area in 1942, when the United States built Frobisher Bay Air Base there, on a long-term lease from the Government of Canada, in order to provide a stop-over and refuelling site for the short-range aircraft being ferried to Europe to support the war effort. Iqaluit's first permanent resident was Nakasuk, an Inuk guide who helped United States Army Air Forces planners to choose a site with a large flat area suitable for a landing strip. The wartime airstrip was known as Crystal Two, was part of the Crimson Route and operates today as Iqaluit Airport.