Complex sentence: After falling ill with dysentery, he was sent back to Scotland to recuperate, after which he was posted to Flanders and saw action at Ypres and Passchendaele, for which he was awarded the Military Cross (MC) and the French Croix de Guerre for bravery.
Split into simpler sentences: After falling ill with dysentery, he was sent back to Scotland to recuperate, after which he was posted to Flanders. He saw action at Ypres and Passchendaele, for which he was awarded the Military Cross (MC) and the French Croix de Guerre for bravery.