Which countries did the nuclear bomb prevent going to war? There was never any serious prospect of the US invading the USSR or vice versa but MUAD certainly didn&#x27;t stop them from involving themselves in more wars (generally supporting opposing sides) in the late twentieth century than in the previous four, India and Pakistan haven&#x27;t exactly softened their stances on Kashmir since acquiring deadly weapons, and the UK even had part of its territory briefly annexed by a foreign power.