Territorial disputes of Ukraine

Donetsk ( , ; ; ), formerly known as Aleksandrovka, Yuzivka (or Hughesovka), Stalin, and Stalino, is an industrial city in eastern Ukraine located on the Kalmius River in Donetsk Oblast, which is currently occupied by Russia as the capital of the Donetsk People's Republic. The population was estimated at in the city core, with over 2 million in the metropolitan area (2011). According to the 2001 census, Donetsk was the fifth-largest city in Ukraine.

Mariupol is a city in Donetsk Oblast, Ukraine. It is situated on the northern coast (Pryazovia) of the Sea of Azov, at the mouth of the Kalmius River. In January 2022, prior to the Russian invasion of Ukraine, it was the tenth-largest city in the country and the second-largest city in Donetsk Oblast, with an estimated population of 425,681; in August 2023, Ukrainian authorities estimated the population of Mariupol at approximately 120,000.

Luhansk (, ; , ), also known as Lugansk (, ; , ), is a city in the Donbas in eastern Ukraine. As of 2022, the population was estimated to be making Luhansk the 12th-largest city in Ukraine.

disputed Russian republic in eastern Ukraine

Yalta (: ) is a resort city on the south coast of the Crimean Peninsula surrounded by the Black Sea. It serves as the administrative center of Yalta Municipality, one of the regions within Crimea. Yalta, along with the rest of Crimea, is internationally recognised as part of Ukraine, and is considered part of the Autonomous Republic of Crimea. However, it is controlled de facto by Russia, which annexed Crimea in 2014 and regards the town as part of the Republic of Crimea. According to the most recent census, its population was

Yevpatoria (; ; ; ) is a city in western Crimea, north of Kalamita Bay. Yevpatoria serves as the administrative center of Yevpatoria Municipality, one of the districts (raions) into which Crimea is divided. It had a population of

annexation of Crimea into Russia in 2014

Sievierodonetsk or Severodonetsk, officially since 2024 Siverskodonetsk, is a city in Luhansk Oblast, eastern Ukraine. It is located to the northeast of the left bank of the Donets river and approximately to the northwest from the administrative center of the oblast, Luhansk. Sievierodonetsk faces neighbouring Lysychansk across the river. The city, whose name comes from the above-mentioned river, had a population of making it then the second-most populous city in the oblast. Since June 2022, it has been militarily occupied and administered by Russia.

Melitopol is a city and municipality in Zaporizhzhia Oblast, southeastern Ukraine. It is situated on the Molochna River, which flows through the eastern edge of the city into the Molochnyi Lyman estuary. Melitopol is the second-largest city in the oblast after Zaporizhzhia and serves as the administrative centre of Melitopol Raion. As of January 2022, Melitopol's population was estimated to be

Enerhodar ( ; , , ; ) is a city and municipality in the northwest of Zaporizhzhia Oblast, Ukraine. It is on the left bank of the Dnieper River, on the opposite side of the Kakhovka Reservoir from Nikopol and Chervonohryhorivka. Its main industry is electricity generation, at coal-fired and large nuclear power stations. It has an estimated population of About 11,000 residents work at the nuclear power station. Since early 2022, it has been under Russian occupation.

island

2022 annexation of areas in Ukraine

territorial dispute between Russia and Ukraine over Tuzla Island in October 2003

case about who would rightfully own the Black Sea islands