Poland secretly transferred US-made Patriot interceptor missiles to Ukraine in the spring of 2026, Sejm Deputy Speaker Krzysztof Bosak said.
According to him, the delivery was carried out in March, even though Warsaw was publicly refusing to fulfill urgent US requests to replenish American stocks of such missiles.
Bosak claims that Ukraine received munitions previously purchased from the US to build Poland’s multilayered air-defense system, which remains unfinished.
Marcin Przydacz, head of the International Policy Bureau in the Polish president’s office, said such a secret transfer in the spring was “highly likely.” According to him, Warsaw also yielded its priority place in the US production queue to Kyiv, delaying deliveries for the Polish army.
The transfer of missiles to Ukraine allegedly took place during the same period when Poland refused to help the US.
In March 2026, Washington requested interceptors to replenish stocks that had fallen sharply after the US military used more than 800 interceptor missiles over five days of combat operations against Iran.
Polish Defense Minister Władysław Kosiniak-Kamysz publicly rejected the American request at the time. He said Poland’s Patriot batteries were intended exclusively to protect the country’s airspace and NATO’s eastern flank.
Kosiniak-Kamysz also noted that the US had already used half of all the alliance’s air-defense capabilities for its own operations.
Patriot missiles are considered a key means of protecting the country from Russian Iskander ballistic missiles deployed in neighboring Kaliningrad region.
Warsaw’s dependence on American systems increased after Poland transferred its entire operational fleet of Soviet S-200 and S-125 air-defense systems to Ukraine.
Poland’s Defense Ministry has not officially disclosed details of the issue. Deputy Defense Minister Cezary Tomczyk said the list of military aid to Ukraine remains classified.
Poland’s decision to supply Ukraine with interceptors also coincided with rising political tensions between Warsaw and Kyiv.
Relations between the two sides are complicated by historical disputes, disagreements over agricultural imports, and problems in defense cooperation.
Polish President Karol Nawrocki recently stripped Volodymyr Zelensky of Poland’s highest state award amid a dispute over a Ukrainian military unit named after historical figures of the UPA.
In addition, Kosiniak-Kamysz said Ukraine had withdrawn from an agreement to receive Polish MiG-29 fighter jets and had not transferred drone technologies to Warsaw.
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