Ukraine war briefing: Dispute over second world war army unit threatens to divide Poland and Ukraine

What Happened

A diplomatic row erupted between Poland and Ukraine after President Volodymyr Zelenskyy renamed a Ukrainian army unit after the Ukrainian Insurgent Army (UPA), a nationalist group that massacred Poles during the Second World War. Polish President Karol Nawrocki revoked Zelenskyy's Order of the White Eagle, prompting three former Ukrainian presidents to return their Polish state awards. Polish Prime Minister Donald Tusk warned that the conflict is a strategic mistake, while Zelenskyy defended the renaming, saying service members choose unit names themselves, and stressed that Ukraine and Poland must remain partners. Simultaneously, Ukraine continued its long-range strike campaign against Russian energy infrastructure. The Kremlin-appointed head of Crimea claimed that overnight Ukrainian strikes killed four people and wounded 28, leading to the suspension of civilian gasoline sales on the peninsula; only government agencies are now permitted to purchase fuel. Zelenskyy stated the attacks hit a Crimean oil depot and an oil transport facility in Russia's Krasnodar region as part of 'long-range sanctions' aimed at reducing Russia's war funding. Russian strikes in eastern Ukraine killed three people overnight, according to local officials.

Key Actors

Why It Matters

The Polish-Ukrainian rift threatens a critical alliance that has facilitated Western military aid and humanitarian support for Ukraine, risking NATO cohesion and logistical supply lines at a pivotal moment in the war. The Crimea fuel suspension and attacks on Russian refineries highlight Ukraine's escalating campaign to degrade Russia's energy logistics and funding base, with reported offline refining capacity reaching a third of the total, which could pressure Russia's domestic fuel supply and war economy.

Watch For

Watch for de-escalation efforts between Warsaw and Kyiv, including direct talks or public statements from Tusk and Zelenskyy, and any impact on Polish military aid or transit of Western weapons through Poland. In Crimea, monitor how long civilian gasoline sales remain suspended and whether Ukraine conducts further strikes on energy targets, as well as any Russian retaliation against Ukrainian cities or adjustments to air defenses in occupied territories and southern Russia.