Complex sentence: The 165th only flew the Sabre for two years, when it was re-equipped with Martin RB-57A Canberra reconnaissance aircraft, the 123d becoming a Tactical Reconnaissance Wing, in which it would remain for the next thirty years.
Split into simpler sentences: The 165th only flew the Sabre for two years, when it was re-equipped with Martin RB-57A Canberra reconnaissance aircraft. The 123d became a Tactical Reconnaissance Wing, in which it would remain for the next thirty years.