There is a Wikipedia page on the Budapest memorandum, which outlines its content, and at least one breach: https://en.m.wikipedia.org/wiki/Budapest_Memorandum_o

There is a Wikipedia page on the Budapest memorandum, which outlines its content, and at least one breach: https://en.m.wikipedia.org/wiki/Budapest_Memorandum_on_Security_Assurances https://en.m.wikipedia.org/wiki/Budapest_Memorandum_on_Secur...