Complex sentence: He went on to be Air Officer Commanding No.1 (Bomber) Group in April 1951 and was advanced to Knight Commander of the Order of the British Empire in the 1953 New Year Honours.
Split into simpler sentences: He went on to be Air Officer Commanding No.1 (Bomber) Group in April 1951. He was advanced to Knight Commander of the Order of the British Empire in the 1953 New Year Honours.