How about yes...SK and the US can train in the very south, instead of on the border with the north. Under the condition that if the North breaks the agreement, China will attack from the North, Russia from their 11 mile border, and SK from the south. We would launch sorties from the sea.
Problem I have with that is I don’t trust the word of the North Koreans, or the Russians, or the Red Chines. Not one bit.