Conversation so far:
Where did Bernard Lewis go to school?
Bernard Lewis graduated from the School of Oriental Studies.
Where was the School of Oriental Studies located?
Bernard Lewis graduated from the School of Oriental Studies at the University of London.
Are there any other interesting aspects about the Bernard Lewis article?
During the Second World War, Bernard Lewis served in the British Army.
While in school did Bernard Lewis study multiple things?
Bernard Lewis graduated with a BA in history with special reference to the Near and Middle East. He earned his PhD in the history of Islam. Lewis also studied law.

Question: What did he do serving there?
Self-contained rewrite: What did Bernard Lewis do serving in the Second World War?