Complex sentence: The full CCS usually met only during the great wartime conferences on grand strategy, such as at Casablanca; at the Casablanca Conference in January 1943, General Frank Maxwell Andrews was appointed commander of all United States forces in the European Theater of Operations.
Split into simpler sentences: The full CCS usually met only during the great wartime conferences on grand strategy, such as at Casablanca. At the Casablanca Conference in January 1943, General Frank Maxwell Andrews was appointed commander of all United States forces in the European Theater of Operations.