“You are arguing that hearsay should have the same weight as a signed contract in court. Good luck with that, if you ever try it for real.”
It’s a bit more than hearsay, but trust me, Putin does not plan to go to the World Court to finally pacify Ukraine.
In other words, Ukraine never violated any treaty. Russia did violate a signed treaty. And why? When all the BS is boiled away, they did so because Ukraine had the temerity to depose Yanukovych, a russian asset, and choose to be independent of russian influence.