Complex sentence: With the defeat of the Germans under Erwin Rommel, he was finally able to return to his capital, Benghazi, where he led the team negotiating with Great Britain and the United Nations over independence.
Split into simpler sentences: With the defeat of the Germans under Erwin Rommel, he was finally able to return to his capital, Benghazi. From Benghazi, Idris led the team negotiating with Great Britain and the United Nations over independence.