Conversation so far:
Is there anything interesting about Holland Smith?
Holland Smith is sometimes called the father of modern U.S. amphibious warfare.
Who was Holland Smith?
Holland Smith was a general in the United States Marine Corps during World War II.
What did Holland Smith do?
On the eve of World War II, General Holland Smith directed extensive Army, Navy, and Marine amphibious training.

Question: What did he accomplish?
Self-contained rewrite: What did Holland Smith accomplish?