Zelenskyy confirms U.S. arms still flowing — but air defense gap remains critical

Ukraine continues to receive American weapons through the Prioritized Ukraine Requirements List without interruption, President Volodymyr Zelenskyy confirmed this week — but he was equally direct about what that pipeline still cannot fix. The flow of U.S. arms has held. The air defense shortfall has not.

“Regarding arms supplies from the United States, they have not stopped. I am grateful to our partners for this,” Zelenskyy told journalists. Asked specifically whether Ukraine had received any signals about delays or cancellations of U.S. weapons deliveries under PURL due to the war in the Middle East, the answer was unambiguous: no such signals had come. The program is running. The gap, however, remains.

When asked about Ukraine’s needs under the PURL initiative, Zelenskyy pointed directly to a deficit of interceptor missiles. Germany recently agreed to finance the supply of several hundred missiles for Patriot air defense systems — a package Zelenskyy acknowledged as significant. But he was careful to separate its strategic value from its tactical impact. “Regarding PURL, this is a deficit. Air defense is insufficient. Recently we signed a great package with Germany, but there are timelines — let’s say these timelines strengthen us strategically, while the tactical deficit needs to be addressed from a different source,” he said.

The PURL program — formally known as the Prioritized Ukraine Requirements List — was established by the U.S. and NATO in the summer of 2025. It functions as a structured procurement pipeline: partner countries contribute funds, NATO coordinates the purchases, and American weapons flow directly from U.S. stockpiles to Ukraine. Since its launch, the initiative has become the backbone of Ukraine’s air defense supply chain, providing roughly 75% of all missiles for the main Patriot batteries in Ukraine and 90% of the ammunition used in other air defense systems. By the end of 2025, total contributions under PURL had reached $4.3 billion, with 24 countries participating in the program.

The architecture of PURL was designed precisely to keep supplies moving even when bilateral U.S. military aid to Ukraine stalled. With Washington’s direct assistance effectively suspended under President Donald Trump’s administration, the initiative has become the primary mechanism keeping Patriot systems armed. European allies fund the purchases; the weapons are American-made; the deliveries continue. Zelenskyy’s confirmation that shipments have not stopped is a significant signal — it means the program is functioning as intended even under the pressure of competing global demands.

The ongoing conflict involving Iran has driven up global demand for Patriot interceptor missiles, particularly the PAC-3 variant, which is produced exclusively in the United States. During the war with Iran in June 2025, when Israel came under Iranian attack, missile supply programs for Ukraine slowed. “This hasn’t happened yet, but I’m afraid it could happen again,” Zelenskyy said in a separate interview with Corriere della Sera. Global monthly production of PAC-3 missiles stands at roughly 60 units — a figure Zelenskyy himself cited publicly. Against the scale of Russia’s ballistic missile campaign, that number is deeply insufficient.

In early February, air defense systems were left without missiles at times, even as Russian strikes continued, according to the head of the Air Force’s communications department. After a mass missile attack struck Ukraine on April 16, Zelenskyy directed the Air Force commander to contact every partner that had committed interceptor missiles but had not yet delivered. “It is important to fulfil every promise of aid to Ukraine on time,” he wrote. “There are many political commitments of partners that have already been announced, but have not yet been implemented.”

The Patriot system intercepts ballistic missiles, cruise missiles, and aircraft using ground-based radar and a battery of interceptors. The PAC-3 missile — the most capable variant — uses hit-to-kill technology, meaning it destroys incoming warheads through direct physical impact rather than a proximity blast. It is the only Western system currently capable of reliably defeating Russian Iskander-M ballistic missiles and Kinzhal hypersonic weapons in operational conditions. Russia has deliberately targeted Ukraine’s Patriot batteries throughout the war, recognizing that destroying the launchers or exhausting the interceptor stockpile achieves the same result as defeating the system outright.

Germany has emerged as the most consequential European partner on this front. Berlin committed to financing hundreds of Patriot interceptor missiles for Ukraine over a four-year period and to expanding the supply of IRIS-T air defense systems. Ukraine and Germany also reached agreements on the supply of PAC-2 missiles and additional IRIS-T launchers. Berlin’s overall military aid budget for Ukraine in 2026 stands at EUR 11.5 billion, with at least $3.7 billion earmarked specifically for air defense and an additional $600 million for deep-strike and mid-strike capabilities. The PAC missile deliveries carry a projected timeline of 2027 to 2029 — which is precisely what Zelenskyy means when he says Germany’s package is strategic rather than tactical.

The broader allied effort came into focus at the 34th meeting of the Ukraine Defense Contact Group, held in Berlin on April 15 in the Ramstein format. Defense ministers from around 50 nations participated. The meeting was co-chaired by German Defense Minister Boris Pistorius and UK Defence Secretary John Healey, with NATO Secretary General Mark Rutte attending. U.S. Defense Secretary Pete Hegseth was not present. Ukraine’s Defense Minister Mykhailo Fedorov briefed allies on battlefield conditions and outlined Kyiv’s most pressing needs.

At the post-meeting press conference, Fedorov confirmed that Belgium, Norway, Bulgaria, Lithuania, and Estonia had announced new contributions to PURL. The collective financial picture from Berlin was significant: partners confirmed a support budget of $38 billion for Ukraine in 2026, including more than $500 million specifically for PURL, $2 billion for air defense, and more than $2.5 billion for Ukrainian drones. Fedorov also said Ukraine had reached agreements with several European partners on the urgent delivery of Patriot missiles directly from their national stockpiles, with exact quantities pending final approval from each country’s leadership.

Britain committed $678 million to Ukrainian air defenses, of which $203.4 million went to PURL, alongside the purchase of more than 1,000 Belfast-manufactured lightweight missiles. Norway allocated $700 million for air defense and $125 million for PURL within its $7 billion Ukraine aid package for 2026. The Netherlands announced a contribution of $106.65 million to PURL. NATO Secretary General Rutte, who has consistently argued that Ukraine will keep receiving partner-funded American weapons despite Middle East pressures, welcomed the new pledges and told ministers: “We cannot lose focus on Ukraine, even with the many security challenges we face.”

Kyiv is not relying solely on allied pledges to solve the problem. Zelenskyy announced on April 19 that Ukraine, with European partner support, intends to develop its own anti-ballistic missile air defense system within a year — a domestic alternative to the Patriot designed to reduce dependence on American production lines. No concrete technical specifications have been made public, and the timeline is ambitious by any measure. Ukraine’s Foreign Minister has separately called on European partners to invest in the effort to accelerate development.