Read this and answer the question. If the question is unanswerable, say "unanswerable".

The Royal Canadian Air Force (RCAF) is headed by the Commander of the Royal Canadian Air Force. The commander of 1 Canadian Air Division and Canadian NORAD Region, based in Winnipeg, is responsible for the operational command and control of Air Force activities throughout Canada and worldwide. 1 Canadian Air Division operations are carried out through eleven wings located across Canada. The commander of 2 Canadian Air Division is responsible for training and support functions. 2 Canadian Air Division operations are carried out at two wings. Wings represent the grouping of various squadrons, both operational and support, under a single tactical commander reporting to the operational commander and vary in size from several hundred personnel to several thousand.

 How many air force wings are located outside of Canada?
unanswerable