The RCAF and Joint Task Force (North) (JTFN) also maintain at various points throughout Canada's northern region a chain of forward operating locations, each capable of supporting fighter operations. Elements of CF-18 squadrons periodically deploy to these airports for short training exercises or Arctic sovereignty patrols.
 What it located through non-Canada's Northern Regions?
{'text': 'chain of forward operating locations', 'answer_start': 115}