Demographics of Crimea point of time. Turkey has provided the greatest support to Ukraine, which has been unable to resolve the problem of education in the mother tongue in Crimea, by bringing the schools to a modern state. Ukrainian was until 2014 the single official state language countrywide, but in Crimea government business was carried out mainly in Russian. Attempts to expand the usage of Ukrainian in education and government affairs have been less successful in Crimea than in other areas of the nation. Currently two thirds of migrants into Crimea are from other regions of Ukraine; every fifth migrant is from elsewhere
Crimea withdrew its forces from southern Kherson in December 2014 Since Russian control over Crimea was established in 2014, the peninsula has been administered as part of the Russian Federation except for the northern areas of the Arabat Spit and the Syvash which are still controlled by Ukraine. Within days of the signing of the accession treaty, the process of integrating Crimea into the Russian federation began: in March the Russian ruble went into official circulation and clocks were moved forward to Moscow time, in April a new revision of the Russian Constitution was officially released with the Republic of Crimea