Complex sentence: XIII Corps later returned to Eighth Army command in January 1945 but Kirkman himself was invalided back to the United Kingdom with severe arthritis in March, Blaxland, p.248 command of XIII Corps going to Lieutenant General Sir John Harding.
Split into simpler sentences: XIII Corps later returned to Eighth Army command in January 1945. He was invalided back to the United Kingdom with severe arthritis in March, Blaxland, p.248 command of XIII Corps going to Lieutenant General John Harding.