The US State Department approved a possible $2.1bn sale of 500 Patriot PAC-3 MSE interceptor missiles to Ukraine on October 30, paid for entirely by Kyiv's allies.

President Volodymyr Zelenskiy called it "a strong decision" and said 500 PAC-3 interceptors "is a substantial number", but warned in a statement on social media early on October 31 that "it has been stipulated that deliveries may begin ONLY IN A FEW YEARS."

Ukraine needs the missiles now. The tit-for-tat missile war is escalating and Russia's winter campaign to freeze Ukraine into submission is already in full swing. Russia has carried out more than 350 attacks on Ukraine's energy system since September, damaging more than 800 pieces of equipment, Energy Minister Denys Shmyhal said on October 30. Missiles that arrive in a few years' time will do nothing to keep the lights and heating on this winter.

"Right now, the Russians are attacking our energy infrastructure every single day. In just these past two weeks of October, there have already been more than 30 Russian strikes on critical parts of our power grid," Zelenskiy said.

He said Kyiv had asked Washington for a winter package of 100 Patriot interceptors a month, and that the US and its partners hold "sufficient stocks of PAC-3 interceptors in their warehouses" to hand them over now and restock later from the production that Ukraine and its allies have already paid for.

"We are asking our American partners to find a solution for the time when there is a real danger and a real need to use PAC-3 interceptors," Zelenskiy said. "We are asking for decisions that can guarantee the protection of lives not the day after tomorrow or sometime later, but at the very moment the threat is there."

Ukraine will pay for the missiles with donations from Canada, Germany and Norway through the US JUMPSTART programme and with national funds financed by the EU's Ukraine Support Loan, the State Department said. No US money is involved. The package also covers spare parts and logistics support, with Lockheed Martin as the principal contractor. The approval clears the way for a contract rather than being one, and Congress has a review period before a deal can be signed. The notice gives no delivery schedule but states that "there will be no adverse impact on U.S. defense readiness" from the sale.

Nato's top commander, General Alexus Grynkewich, insisted the same day that existing deliveries were on track. "Everything has been delivered, in fact, we just had the delivery within the last week," he told reporters in Riga, Bloomberg reported, adding that no items paid for by European allies under the Prioritized Ukraine Requirements List (PURL) scheme had been delayed. Kyiv sees it differently: Zelenskiy said on October 26 that Ukraine had been waiting almost a month for US approval of further Patriot and NASAMS missile deliveries.

A trickle of missiles

The 500 missiles come on top of a supply line that has slowed to a trickle. At the Ankara Nato summit on July 8, President Donald Trump said "some" Patriots could be sent immediately and promised Ukraine a licence to make the interceptors itself, but added: "We have Patriots, but we don't have that many. We need them for ourselves too," Reuters reported.

Zelenskiy said in an interview with ABC News that Ukraine had received only about 24 Patriot interceptors from the US in the last three months, or roughly one every four days, against a need he put at about 350 a month, Ukrainska Pravda reported on October 24. Three days later he told journalists that Ukraine had received an average of 12 Patriot missiles a month from the US in 2026, the Kyiv Independent reported.

"Imagine: you can count on 150 missiles per year from America, but you need to shoot down 150 ballistic missiles a month," Zelenskiy said. Ukraine has seen its interceptor missiles run dry since the summer, leaving the president sounding increasingly desperate as he hunts for spare rounds among allies, and CNN reported on October 15 that Ukraine's Patriot stocks had been depleted.

Russia is not short of missiles. It has fired more than 100 ballistic missiles at Kyiv and the surrounding region since October 14, according to the Kyiv Independent. Ukraine's Defence Intelligence (HUR) estimated in late October that Russia has stockpiled up to 700 ballistic missiles of all types, Ukrainska Pravda reported, including about 115 Iskander-Ms, down from around 130 in early August, and up to 400 RM-48U missiles adapted from S-300 and S-400 air defence rounds. Russia builds up to 65 Iskander-Ms and around 40 RM-48Us a month, according to HUR, after a Chinese-fuelled surge in Iskander output this year. The full spread of Russia's missile and drone arsenals dwarfs anything Ukraine's allies can intercept.

The US cannot build fast enough

Lockheed Martin delivered more than 600 PAC-3 MSEs in 2025, a 20% increase on the year before, and signed a seven-year framework agreement with the Pentagon in January to lift annual capacity to 2,000. The US Army followed on July 29 with a multiyear contract worth up to $58.6bn, but the company does not expect to triple output until about 2030.

Five hundred missiles is more than four-fifths of last year's entire output. Washington's own inventory has been run down by the Iran war: the Center for Strategic and International Studies (CSIS) estimated in a July 27 paper that US Patriot stocks had fallen below 1,000 interceptors, and other reporting of its estimates put the figure at 759-827, down from about 2,330 before the war. On those numbers the Ukrainian order alone would equal roughly two-thirds of what the US has left. Even before the Iran war began, allies had a backlog of more than 2,000 PAC-3s on order, a wait of at least four years.

America's Gulf allies and Israel are also in the queue. Gulf Patriot batteries fired 943 rounds in 96 hours in the opening days of the Iran war, and Saudi Arabia's Patriot stockpile has shrunk by 86% since the war started, Reuters reported in August. Israel told US officials in March that its stock of ballistic missile interceptors was critically low, Semafor reported; no public estimate of how many Patriots Israel has left has been published.

Renewed fighting with Iran has kept up the drain since. When Iran fired 20 ballistic missiles at Jordan's Muwaffaq Salti Air Base, which hosts US forces, on the night of September 8-9, open-source analysts estimated that US Patriot batteries fired anywhere from 60 to more than 100 interceptors, with the Ukrainian defence outlet Defense Express describing batteries firing in "machine-gun" mode. The Pentagon has not confirmed a number.

At the 12 missiles a month Ukraine has averaged from the US this year, 500 interceptors would take three and a half years to arrive.