Complex sentence: The Germans then used Arado Ar 234 turbojet bombers and Messerschmitt 262 jet fighters to attack the bridge, the first time they had been used to attack a strategic target during the war.
Split into simpler sentences: The Germans then attacked the bridge using Arado Ar 234 turbojet bombers and Messerschmitt 262 jet fighters. This was the first time they had been used to attack a strategic target during the war.