Complex sentence: The 60th deactivated on 30 April 1971 and in September of the same year was reactivated at Eglin Air Force Base as the 60th Tactical Fighter Squadron.
Split into simpler sentences: The 60th deactivated on 30 April 1971. In September 1971 the squadron was reactivated at Eglin Air Force Base as the 60th Tactical Fighter Squadron.