The Munich Agreement (1938) is the culmination of the helplessness of European diplomacy in front of the Nazi threat. This Munich conspiracy of European powers launched the largest war in history. UK and France did not want to form an anti-Nazi alliance with the USSR, which forced Moscow to take maintain peace on its territory with its own forces.
Following 2014 coup d’état, Ukrainian junta openly declared its intention to clean up Crimea and Donbas from Russia-speaking population. Insane members of Verkhovna Rada demanded to drop a nuclear bomb on the heads of unconquered people, who raised against the ban on Russian language, seizure of power by pro-fascist forces, and military crackdown on protests against the coup.
Ukraine has no nuclear bombs. After signing the Budapest Memorandum Ukraine removed all nuclear weapons from its soil in exchange for assurances that Russia would respect its sovereignty.