Russia trashed the START1 treaty, the Lisbon Protocol and the Budapest Memorandum, when they invaded in 2014.
Obozo did nothing.
Its funny how “conservatives” continuously rail-on about the lack of security of the USA border, which faces a foreign invasion (even if un-armed) - but are completely oblivious to active efforts to undermine the security of other nation’s borders, particularly with organized military.
And then they are surprised and butt-hurt when the obvious reaction eventually occurs.