Complex sentence: From 1937 to 1938, he was aide-de-camp to the King and in late 1938 Platt was promoted to major-general to take up the appointment as Commandant of the Sudan Defence Force.
Split into simpler sentences: From 1937 to 1938, he was aide-de-camp to the King. In late 1938 Platt was promoted to major-general and appointed Commandant of the Sudan Defence Force.