Complex sentence: He took part in Operation Chastise, the RAF's "Dambusters" raid in 1943, and was described by journalist Sir Max Hastings as "one of the three great bomber pilots of the war".
Split into simpler sentences: He took part in Operation Chastise, the RAF's famous "Dambusters" mission in 1943. He was described by journalist Sir Max Hastings as "one of the three great bomber pilots of the war".