Polish Prime Minister Donald Tusk has intervened to de-escalate a deepening diplomatic crisis between Warsaw and Kyiv, warning that the conflict between politicians in both countries is a strategic mistake that will harm both nations.

Tusk stated on Sunday that he is attempting to mitigate the damage caused by the renewed dispute, which centers on historical grievances regarding events from the Second World War.

The Polish leader's comments come as tensions between the two NATO allies have flared, threatening to undermine the unity of the Western alliance's eastern flank.

The rift highlights the fragility of post-war reconciliation efforts in Eastern Europe.

Recent reports from Dutch media outlet De Telegraaf noted that relations between Ukraine and Poland are running hot, with observers warning that Moscow stands to profit from any division among its adversaries.

This sentiment aligns with Tusk's assessment that the current political friction serves Russian interests.