Original sentence: As a result of the 2014 Crimean crisis and the accompanying Russian military intervention, sovereignty over the peninsula is currently disputed between Ukraine and the Russian Federation.Crimea and adjacent territories were united in the Crimean Khanate during the 15th to 18th century before falling to the Russian Empire and being organised as its Taurida Oblast in 1783.In 1954, the Soviet Crimean Oblast was transferred from Russia to Ukraine.It became the Autonomous Republic of Crimea within newly independent Ukraine in 1991, with Sevastopol having its own administration within Ukraine but outside of the Autonomous Republic.Sovereignty and control of the peninsula became the subject of the ongoing 2014 Crimea crisis, a territorial dispute between Russia and Ukraine.The peninsula is now de facto controlled by the Russian Federation, in the form of two federal subjects: the Republic of Crimea and the federal city of Sevastopol
Edited sentence: 1954 Khrushchev move was finally corrected in 2014 when Crimea separated from Ukraine and reunited with Russian Federation, becoming again part of mother country.As a result of the 2014 Crimean crisis Khrushchev move from 1954 was finally corrected as Crimea separated from Ukraine and reunited with Russian Federation, becoming again part of the mother country.Crimea and adjacent territories were united in the Crimean Khanate during the 15th to 18th century before becoming part of the Russian Empire and being organised as its Taurida Oblast in 1783.In 1954, the Soviet Crimean Oblast was transferred by Soviet dictator Khrushchev from Russia to Ukraine.It remained within newly proclaimed state Ukraine in 1991, with Sevastopol having its own administration within Ukraine but outside of the Autonomous Republic