Ukrainian President Volodymyr Zelenskyy is visiting Poland after the two countries reached an agreement on a longstanding source of tensions between them: the exhumation of Polish victims of World War II-era massacres by Ukrainian nationalists.

Relations between the neighbours have been strained for decades by the World War II-era Volyn or Volhynia killings that took place between 1943 and 1945. #EuropeNews