It's not just a response to an immediate threat, after all; it's something Adrian has been planning and working on for a long period of time.

The nuclear threat had been there since the early 50s. But you are right: Jon leaving Earth could have lead to war. It was a really close call. I think Adrian only risked it because he knew - or at least believed - that war is otherwise unavoidable.

How is the next chapter? :D