Complex sentence: In 1955, the unit reverted to its previous identity, and No.31 Squadron moved to Laarbruch in Germany and received Canberra PR7s-a type it flew until 1971 when they were replaced by Phantoms.
Split into simpler sentences: In 1955, the unit reverted to its previous identity, and No.31 Squadron moved to Laarbruch in Germany with Canberra PR7s. The squadron flew Canberras until 1971 when they were replaced by Phantoms.