Conversation so far:
What does the article say about Mohammed Zahir Shah's Exile?
Zahir Shah lived in exile in Italy for twenty-nine years in a villa in the affluent community of Olgiata on Via Cassia, north of Rome
why did Mohammed Zahir Shah live in Exile?
During August 1973, Zahir Shah abdicated rather than risk a civil war, ending over 200 years of royal rule in Afghanistan.
What did Mohammed Zahir Shah do while living in exile?
he spent his time playing golf and chess, as well as tending to his garden.

Question: What made him come out of exile?
Self-contained rewrite: What made Mohammed Zahir Shah come out of exile?