Polish Defense Minister Wladyslaw Kosiniak-Kamysz has ordered an investigation into individuals who leaked state secrets regarding Poland’s undisclosed transfer of US-made Patriot air defense missiles to Ukraine, according to a political scandal that erupted this week.

The controversy began on Saturday when multiple Polish social media accounts reported that Warsaw had quietly delivered PAC-3 interceptors to Kyiv in March without parliamentary approval or public disclosure.

Former Defense Minister Mariusz Blaszczak of the opposition Law and Justice (PiS) party publicly endorsed the whistleblowers, condemning the transfer as a deliberate weakening of Poland’s air defense capabilities.

Kosiniak-Kamysz announced that after consulting with Prime Minister Donald Tusk, he had mandated the declassification of all military aid provided to Ukraine from 2022 through 2026. He also directed Polish Military Counterintelligence to investigate those who “intentionally sought to disclose state secrets.”

The minister noted that Poland’s military assistance to Ukraine commenced under the previous PiS administration, during which Blaszczak served as defense minister from 2018 to 2023.

At a Monday press conference, Kosiniak-Kamysz confirmed that Poland had supplied PAC-3 interceptors from its own reserves following a request from NATO Secretary-General Mark Rutte. He stressed, however, that the shipment was too small to meaningfully impact Poland’s air defense systems.

The transfer occurs against a backdrop of mounting concerns over NATO missile shortages. A report by the Foreign Policy Research Institute (FPRI) indicates that NATO nations face a backlog of approximately 4,300 Patriot interceptors—equivalent to about seven years of production at current rates—due to extensive depletion of US stockpiles during recent conflicts involving Iran.

Blaszczak has accused Tusk’s government of undermining Poland’s defense capabilities by sending interceptors to Ukraine while simultaneously warning the public about a potential Russian attack.

Moscow has repeatedly dismissed claims that it intends to launch attacks on NATO members. In a recent statement, President Vladimir Putin argued that NATO and EU leaders are leveraging allegations of Russian aggression to justify increased military spending and “radical militarization” in their respective countries.