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Poland joins European anti-ballistic missile coalition
Summary
A look back at the announcement by Poland's prime minister that Warsaw had signed up to a joint European missile defence effort.
What did it mean when Poland joined a European coalition to build anti-ballistic missile defences? The question was current on 20 September 2026, two days after Polish prime minister Donald Tusk announced the step on 18 September.
Tusk said Poland had joined the Anti-Ballistic Missile Coalition, a group of European countries working to develop a joint anti-ballistic missile defence system.
What the coalition is
The coalition had been established on 13 July 2026 by Denmark, France, Germany, Italy, the Netherlands, Norway, Spain, Sweden, Ukraine and the United Kingdom. Its aim is to develop an integrated anti-ballistic missile defence capability for Europe.
Poland's entry, announced about two months after the founding, added another European country to that group of ten founding members.
The announcement set out the decision to join and the goal of a shared system. It did not detail Poland's contribution or a timetable, and the coalition's later development lies beyond the covered date.
