Conversation so far:
Where did Lowell Thomas begin his career?
Lowell Thomas and cameraman Harry Chase first went to the Western Front, but the trenches had little to inspire the American public.
What year did Lowell Thomas go to the Western Front?
During his 1917 visits to the battlefields, Lowell Thomas learned that the British had named General Edmund H. H. Allenby, as their new commander in chief in Egypt.

Question: What did he do for them?
Self-contained rewrite: What did Lowell Thomas do for General Allenby?