For a long time, Poland and Ukraine were the staunchest of allies.

The political and military support Ukraine received from Poland made a major contribution to Ukraine's ability to successfully defend itself in the early days of Russia's full-scale invasion, which began in February 2022.

Now, however, a dispute about the past, which has been rumbling on for weeks, is plunging the two neighbors into an ever-deepening crisis.

Withdrawal of Poland's highest state honor

On Friday evening, Polish President Karol Nawrocki announced on X that he was revoking the Order of the White Eagle, Poland's highest state honor, from Ukrainian President Volodymyr Zelenskyy.