The issue of Polish victims of Second World War massacres involving Ukrainian nationalists is a long-standing source of tension between the countries.

Ukrainian President Volodymyr Zelensky 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.

I can only confirm that Russia planned acts of air terror, not just against Poland but against airlines across the globe,” said Poland’s prime minister, Donald Tusk.

While the Norwegian jets are primarily in Poland to help defend a key logistics hub bringing materiel into Ukraine, rogue Russian missiles and drones have entered Polish airspace several times since the full-scale invasion began.

NATO member Poland scrambled fighter jets after overnight Russian missile and drone attacks on Ukraine, Warsaw's military said on Wednesday. Newsweek has reached out to Polish authorities and Russia's Defense Ministry for comment via email.

Russia launched a major ballistic and cruise missile attack on regions across Ukraine early Wednesday, targeting energy production and compelling authorities to shut down the power grid in some areas,