Ukraine borders Russia to the east , northeast and south , Belarus to the northwest , Poland , Slovakia and Hungary to the west , Romania and Moldova to the southwest , and the Black Sea and Sea of Azov to the south and southeast , respectively .
Russia is to the north-east of Ukraine , Belarus is to the Northwest , Poland and Slovakia are to the West , Hungary , Romania , Moldova and self-proclaimed Transnistria are to the South West and the Black Sea is to the Southwest .