Conversation so far:
When did James Stockdale become a prisoner of war?
On 9 September 1965, Stockdale ejected from his Douglas A-4 Skyhawk. He parachuted into a small village, where he was severely beaten and taken prisoner.
What happened while James Stockdale was a POW?
As the senior Naval officer, he was one of the primary organizers of prisoner resistance.
What happened during the 7.5 years James Stockdale was a POW?
Tortured routinely and denied medical attention for the severely damaged leg he suffered during capture, Stockdale created a code of conduct for prisoners which governed torture, secret communications, and behavior.

Question: What else transpired during his time at Hoa Lo prison?
Self-contained rewrite: What else transpired during James Stockdale's time at Hoa Lo prison besides being tortured routinely and denied medical attention?