Question: Marine Aviation Training Support Group 21 was reactivated when which Navy base near Warrington was renamed?
Sentence (from "Naval Air Station Pensacola"): It is best known as the initial primary training base for all U.S.Navy, Marine Corps and Coast Guard officers pursuing designation as Naval Aviators and Naval Flight Officers, the advanced training base for most Naval Flight Officers, and as the home base for the United States Navy Flight Demonstration Squadron, the precision-flying team known as the Blue Angels.
Relevant evidence: No