Poland joins Ukraine's anti-ballistic missile coalition and takes a new aid package to a Carpathian summit

Prime Minister Donald Tusk said on 18 September that Poland has joined the anti-ballistic missile coalition built around Ukraine. He made the statement during a visit to western Ukraine for the first summit of a new Carpathian group of eight countries. President Volodymyr Zelenskyy, who hosted the meeting, said Poland was welcome and that the two countries would be partners in the project.

The coalition was announced in Paris in July by Ukraine and nine European states: the United Kingdom, Germany, France, Italy, Spain, Sweden, Norway, Denmark and the Netherlands. Poland was not on that list. Tusk said on Friday that the omission had been a misunderstanding and that the form and framework of Polish participation were now agreed. In a video posted on X he said that from today Poland is part of this major project.

What the coalition is for

The stated aim is a European anti-ballistic system that can sit beside, and in some roles cost less than, the American Patriot. Ukrainian defence firm Fire Point is developing an air-defence system called FREYJA as one candidate interceptor. Patriot batteries and PAC-3 missiles remain the backbone of Ukraine's high-altitude cover and of several European inventories. They also depend on US production lines. The July declaration cited a rising ballistic threat and the need for a continental supply chain that does not wait on American allocations.

Tusk told a press conference that Poland had prepared a new and significant donation package for Ukraine. He did not list the contents. After the bilateral meeting Zelenskyy thanked him for the package and said the two countries had one common enemy. Tusk said no one would change his view that Poland must support Ukraine against Russian aggression, and that history must not divide the two states on that point.

The Carpathian Eight

The summit launched a regional format that Zelenskyy's office is calling the Carpathian Eight: Ukraine, Romania, Serbia, Poland, Slovakia, the Czech Republic, Austria and Hungary. The list mixes NATO members, a neutral state and a candidate that has kept ties with Moscow. An anti-ballistic project sitting next to that table will not move at one speed. Hungary and Serbia are the obvious brakes. Poland's entry adds a large army, a long border with Ukraine and a government that has made air defence a budget priority since 2022.

The immediate product of Friday is political, not hardware. No contract for FREYJA or any other interceptor was announced. What changed is the membership roll. A coalition that looked like a western European and Nordic club now includes the state that has been Ukraine's main land corridor since the first weeks of the war. The next test is whether Warsaw puts money and industrial capacity into the same sentence as the word partner.