Political status of Crimea declared their independence from Ukraine as a single united state under the name of "Republic of Crimea". These two entities (Crimea and Sevastopol) were then annexed by Russia, where the Crimean Autonomous Republic became the "Republic of Crimea" as a Russian republic and Sevastopol became a Russian federal city. However, Ukraine and the majority of the international community do not consider the merge, the independence, the referendum, nor the annexation legitimate and still consider both entities as parts of Ukraine. Despite international opinion however, the currency, tax and legal system are all operational under Russian jurisdiction. Ukraine has applied for
Crimea by "the commonality of the economy, the proximity, and close economic and cultural relations between the Crimean region and the Ukrainian SSR". At that time no vote or referendum took place, and Crimean population had no say in the transfer (also typical of other Soviet border changes). After the annexation of Crimea by the Russian Federation, doubts have been expressed - from the Russian side by all means, but even by Western historians (Richard Sakwa, "Frontline Ukraine. Crisis In the Borderlands", 2015) - about the very legitimacy of the 1954 transition of Crimea to Ukraine; in the critics' view the