>Now there's country that traded nuclear weapons for protection by the US that is being invaded by a fascist dictator.
Are you talking about the Budapest Memorandum? According to Wikipedia, it says
>Seek immediate Security Council action to provide assistance to the signatory if they "should become a victim of an act of aggression or an object of a threat of aggression in which nuclear weapons are used".
So AIUI, that's a guarantee that the US will defend Ukraine if Ukraine gets attacked by Russia with nukes. It's not a guarantee that the US will defend Ukraine if Ukraine gets attacked by Russia with non-nukes. So I don't think the US has violated the agreement. Russia violated the agreement by attacking Ukraine (Russia was a signatory, and the treaty also says the parties won't attack each other with any type of weapon).
But had Ukraine not agreed, they very likely wouldn't have been invaded. Meanwhile Putin was threatening to use nuclear weapons if western countries would have directly intervened. This threat is looming over _all_ negotiations and actions.
So really Russia is getting away with invading Ukraine and expanding their territory and use their nuclear arsenal indirectly to achieve that.
Are you talking about the Budapest Memorandum? According to Wikipedia, it says
>Seek immediate Security Council action to provide assistance to the signatory if they "should become a victim of an act of aggression or an object of a threat of aggression in which nuclear weapons are used".
So AIUI, that's a guarantee that the US will defend Ukraine if Ukraine gets attacked by Russia with nukes. It's not a guarantee that the US will defend Ukraine if Ukraine gets attacked by Russia with non-nukes. So I don't think the US has violated the agreement. Russia violated the agreement by attacking Ukraine (Russia was a signatory, and the treaty also says the parties won't attack each other with any type of weapon).
https://en.wikipedia.org/wiki/Budapest_Memorandum