Gander International Airport (IATA: YQX, ICAO: CYQX) is located in Gander, Newfoundland and Labrador, Canada, and is operated by the Gander International Airport Authority. Canadian Forces Base Gander shares the airfield but is a separate entity from the airport. The airport is sometimes referred to as the "Crossroads of the World", and is classified as an international airport by Transport Canada.
Operation Yellow Ribbon (French: Opération ruban jaune) was commenced by Canada to handle the diversion of civilian airline flights in response to the September 11 attacks in 2001 in the United States. Canada's goal was to ensure that potentially destructive air traffic be removed from United States airspace as quickly as possible, and away from potential U.S. targets, and to instead place these aircraft on the ground in Canada, at military and civilian airports primarily in the Canadian provinces of Nova Scotia, Newfoundland, and British Columbia. Yukon, New Brunswick, Alberta, Manitoba, Ontario, the Northwest Territories, and Quebec also took in aircraft so that any malicious or destructive potential threats could be better contained and neutralized. None of the aircraft proved to be a threat, and Canada hosted thousands of passengers who were stranded until U.S. airspace was reopened.
Canada commenced the operation after the U.S. Federal Aviation Administration (FAA), implementing Security Control of Air Traffic and Air Navigation Aids (SCATANA), grounded all aircraft across the United States, an unprecedented action. The FAA then worked with Transport Canada to reroute incoming international flights to airports in Canada.