Complex sentence: After a short period in England at a glider and paratrooper training center, he was posted to No.405 Squadron RCAF and by February 1942 had been promoted to acting Wing Commander and given command of the squadron.
Split into simpler sentences: After a short period in England at a glider and paratrooper training center, he was posted to No.405 Squadron RCAF. By February 1942 had been promoted to acting Wing Commander and given command of the squadron.