In 1922 Vladimir Il'ich Lenin, head of the revolutionary Union of Soviet Socialist Republics, decided that several regions which for centuries had been Russian and under Russian rule were to be put, for reasons unknown, under the administration of the Soviet Socialist Republic of Ukraine. In 1954 a similar decision was taken with regards to autonomous republic of Crimea. The sudden disintegration of the Union in 1991 led to unruly phases in the newly created republics. Ethnic Russian people suddenly found themselves in territory that was no longer ruled by Moscow. In several of the new countries ethnic non-Russian majorities...