Ukraine is now at odds with Poland, one of its most vital allies in its effort to defeat Russia, over their fraught historical relationship.

Poland's president has revoked the country's highest state honor awarded to Ukrainian President Volodymyr Zelenskyy, following a dispute over...

The row began after the Ukrainian leader named a military unit after a WWII insurgent army that took part in massacres against Poles.

Ukraine is now at odds with Poland, one of its most vital allies in its effort to defeat Russia, over their fraught historical relationship.