Apparently for Coronet Kingfisher, part of Exercise Bold Guard in 1978.
http://www.airforcecollectables.com/USAF-Patch-Fighter-522-TFS-Tac-Ftr-Sqn-Coronet-Kingfisher-1978-1P-02US-4USA-01SQN-2OP-0522SQ-02.htm
And a bit more info on the exercise on this page:
http://sharpshooter-maj.com/html/deploy78.htm
First overseas deployment of the F-111D. As the flag suggests, the deployment was to a base in Norway.