The Break-Up of the Soviet Union

December 1991 saw the end of 70 years of communist rule and the collapse of the Soviet Union. We hear from two of the key signatories of the dissolution treaty, a witness to the ensuing crisis in one of the newly independent states, and from an American nuclear expert who helped clean-up the former USSR. Also, the performance artist protesting about the growing divide between rich and poor, and the first editor of Vogue magazine in Russia. Photo: The leaders of Ukraine and Belorussia, alongside Russian leader Boris Yeltsin, at the ceremony formally dissolving the USSR in December 1991, Credit: AP