Twelve F-16s with the 510th Fighter Squadron from Aviano Air Base, Italy are now at Kallax Air Base, Sweden for Arctic Challenge Exercise 2015.
![150522-F-PB969-087[1]](http://alert5.com/wp-content/uploads/2015/05/150522-F-PB969-0871-500x334.jpg)
U.S. Air Force photo/Staff Sgt. Evelyn Chavez
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