Question: At which Air National Guard installation within Joint Base Cape Cod is this United States Air Force intelligence unit located, which participated in Operation Northern Watch, and was dispatched during the September 11 attacks in an attempt to stop the attacks?
Sentence (from "101st Intelligence Squadron"): From its creation in 1921 to its mission change in 2008, the 101st was the mainstay of aerospace defence for the Northeastern United States.
Relevant evidence: No