Visa policy of Ukraine
Visitors to Ukraine must obtain a visa from one of the Ukrainian diplomatic missions or online unless they come from one of the visa exempt countries.
Visa policy of Russia
As of 2014 the disputed territory of Crimea is under Russian control and Russia enforces its visa policy there. However, Ukraine requires that foreigners should comply with Ukrainian visa regime including obtaining a Ukrainian visa if one is necessary. Otherwise, Ukraine may impose sanctions for "support of the temporary occupation of the Ukrainian territory".