Russia is in clear violation of it, but it never promised US military intervention. All it promises is we'd go to the Security Council about it.
The memorandum didn't really anticipate one of the signatories with a UN veto being the aggressor.
The UK and France have clearly followed (and exceeded, via direct military aid it does not require) the requirements of the memorandum.
I can't find the text of China's agreement.
Yet, the US is the one that is forever chided for being negligent to the terms of the agreement.
As I've noted upthread.
> Yet, the US is the one that is forever chided for being negligent to the terms of the agreement.
The US has absolutely complied with the Budapest Memorandum's requirements.
Military aid isn't required, it's just a good idea. The recent withdrawal of aid is a betrayal of an ally, but not a violation of the Memorandum.