There is a particular kind of helplessness that comes with having a sophisticated weapon system and nothing to load into it. That is exactly the image Volodymyr Zelensky placed at the center of his latest appeal to Washington.
In a five-page letter sent simultaneously to President Donald Trump and the U.S. Congress in late May 2026, the Ukrainian president issued what may be his most direct and urgent request since the war began. The message, stripped of diplomatic softening, was this: Ukraine’s Patriot air defense batteries are critically short of interceptor missiles, Russia is escalating its use of hypersonic and ballistic weapons, and the United States is the only country in the world that can actually fix the problem.
“For us, for a nation fighting for its survival there is hardly anything more painful to see than Patriot batteries with no missiles loaded.”
That single line from the letter captures Ukraine’s specific vulnerability better than any briefing document could.
Why Only America Can Close This Gap
Zelensky’s letter was careful to distinguish between the two tiers of Ukraine’s air defense problem. European allies and Canada have collectively contributed to purchasing equipment under the NATO-backed Prioritized Ukraine Requirements List (PURL) program and that funding covers a real range of needs: tactical air defense, drone interception, short-range protection.
But when Russia launches its most advanced weapons, the Kh-47M2 “Kinzhal” hypersonic missile, the Oreshnik ballistic system, high-altitude threats that travel at speeds and altitudes that most conventional air defenses cannot reach none of that European-backed equipment can touch them.
For those threats, Zelensky wrote, Ukraine relies “almost exclusively on the United States.”
That is not a rhetorical flourish. The Patriot PAC-3 is simply in a different category from everything else Ukraine has. Its hit-to-kill technology physically slamming into an incoming warhead at Mach 5+ rather than detonating near it, is what makes it capable of intercepting the weapons that would otherwise arrive uncontested. No European-supplied system currently in Ukraine’s inventory replicates that capability.
The PURL delivery pipeline, Zelensky noted, is already failing to keep pace with the threat. Global stockpiles are strained, and ongoing conflicts particularly the war involving Iran have diverted significant portions of U.S. PAC-3 inventories away from the Ukraine supply chain. Empty batteries are not a hypothetical; they are a present reality on Ukrainian soil.
The Strike That Framed the Letter
The urgency of Zelensky’s appeal did not arrive in a vacuum. In the days preceding the letter, Russia launched a massive wave of aerial bombardments combining hypersonic and ballistic missiles across Ukraine. The strikes caused widespread destruction including a direct hit on the newly renovated Chornobyl Museum in Kyiv.
That particular target landed with symbolic weight that no amount of military framing could neutralize. The Chornobyl Museum is not a military installation. It is a memorial to one of the defining catastrophes of the twentieth century, now partially destroyed by weapons that Ukraine’s depleted Patriot batteries could not stop in time.
The strike made the argument for the letter without a single word of explanation.
What the PAC-3 Actually Does and Why It’s Irreplaceable
To understand why Zelensky’s request is so specific, it helps to understand what the Patriot PAC-3 changed when it arrived in Ukraine.
Before PAC-3, Russia’s most advanced high-altitude weapons flew essentially uncontested. Ukraine had no reliable way to intercept them. The arrival of the Patriot system rewrote that reality in several ways.
Most significantly, it proved Russia’s supposedly “unstoppable” hypersonic missiles could be shot down. Moscow had marketed the Kinzhal as invincible. Ukrainian Patriot batteries made that claim obsolete, intercepting multiple confirmed strikes, a psychological and strategic reversal that reverberated well beyond the battlefield.
The system also transformed the math of interception. An older PAC-2 launcher holds just four missiles. Because PAC-3 interceptors are physically smaller and more compact, a single launcher can carry up to 16 missiles dramatically increasing a battery’s ability to handle Russia’s saturation-strike tactics, which deliberately mix hundreds of cheap drones with a smaller number of high-value ballistic weapons to force Ukraine to burn through its expensive interceptors.
Ukraine has also used the system offensively and creatively. Mobile Patriot units have been pushed close to front lines to execute “pop-up” ambushes catching advanced Russian Su-34 and Su-35 fighter jets, and even rare military command aircraft, deep behind Russian lines in operations that would have been unthinkable with Ukraine’s earlier air defense inventory.
But every one of those intercepts consumes a missile that costs roughly $4 million to replace and global production lines are not manufacturing them fast enough to keep pace.
Ukraine as a Security Partner, Not Just an Aid Recipient
One of the more strategically calculated elements of Zelensky’s letter was its deliberate effort to reframe Ukraine’s position in the relationship with Washington not as a supplicant asking for charity, but as an active partner delivering measurable value.
The letter highlighted that Ukrainian specialists have been deployed across the Middle East including to Saudi Arabia, the UAE, Kuwait, Qatar, and Jordan to help Gulf states strengthen their own air defenses. Critically, that assistance has extended to U.S. military bases operating in the region.
The practical basis for that expertise is direct and battle-tested. Russia uses Iranian-designed Shahed loitering drones to bombard Ukrainian cities. Ukraine has spent years developing, under live fire conditions, the tactics, command-and-control frameworks, and interception techniques needed to defeat them. More than 200 Ukrainian drone warfare and air defense specialists were deployed to the Gulf earlier this year, carrying that knowledge with them.
The implicit argument Zelensky was making to Washington is one of reciprocity: the United States benefits from what Ukraine has learned on the modern electronic battlefield. The flow of value is not one-directional. Cutting off the Patriot missile supply doesn’t just harm Ukraine, it undermines a partnership that is actively protecting American military installations in the Middle East.
Congress Responds; the White House Stays Quiet
As of the letter’s publication, the Trump White House had not issued a formal response.
What did emerge quickly was bipartisan support from U.S. lawmakers who happened to be on the ground in Kyiv when the appeal went public. On May 28, a congressional delegation visiting Ukraine threw its weight behind the request.
Senator Richard Blumenthal (D-CT), standing alongside Zelensky in Kyiv, stated that the U.S. has historically answered Ukraine’s critical weapons requests and expressed his expectation that Washington would do so again committing to return to Washington and lobby aggressively for the interceptor resupply. Representative Jim Himes (D-CT) called Russia’s escalating threats to systematically bombard Kyiv a “sign of desperation” and echoed the commitment to press the administration upon returning home.
Congressional backing is meaningful, but it is not the same as an executive decision. The formal greenlight requires the administration to navigate a genuine supply dilemma: U.S. PAC-3 stockpiles are heavily depleted, and the same global conflicts pulling on those inventories are not going away. Saying yes to Ukraine means making choices about what other commitments get served with what’s left.
An Empty Battery Is Not a Defense System
The Patriot PAC-3 has functioned as the structural backbone of Ukraine’s national air defense since its arrival, the system that makes everything else work by handling the threats that nothing else can touch. It has protected Kyiv, intercepted missiles that were supposed to be unstoppable, and given Ukraine’s military a meaningful answer to Russia’s most advanced aerial arsenal.
But a Patriot battery without missiles is a radar installation and a launcher. The hardware means nothing without the ammunition to load into it.
That is the point Zelensky made in five pages, and it is a point that does not become less true the longer Washington takes to respond.
