https://www.lesswrong.com/posts/oM9pEezyCb4dCsuKq/pausing-ai...
Basically, the idea is that countries sign the agreement to stop the large training runs, and, if necessary, be willing to use conventional strikes on AI-training datacenters in the countries that refuse. Hopefully it doesn't come to that, hopefully it just becomes the fact of international politics that you can't build large AI-training datacenters anymore. If some country decides to start a war over this - the argument is that wars at least have some survivors, and an unaligned AI won't have any.