Was this ever ratified by the Senate? If not, it's worthless.
I suppose then, IF and only IF [did you see that “IF”?] and to reiterate this as a hypothetical, I say IF [hint: IF] I were a Ukrainian nationalist then I’d be targeting the US Senators who did not ratify that agreement, as well as pootypoot himself. Did I mention this was a hypothetical? You DO understand the word “if” I hope.