Russia is demanding Ukraine cede all of its eastern Donbas region, but would be willing to freeze the conflict in the south of the country along current front lines, Turkey's top diplomat has said.
Russia occupies around one-fifth of Ukraine's territory, and has claimed to have annexed five of the country's regions -- Donetsk, Lugansk, Kherson and Zaporizhzhia, along with Crimea, which it seized in 2014.
