Poland and Germany sign a defence pact to extend the Eastern Shield
German troops to help fortify the Belarus and Russia borders as US engagement wavers
Summary
On 17 June 2026 in Warsaw, Poland's Defence Minister Władysław Kosiniak-Kamysz and German counterpart Boris Pistorius signed an inter-ministerial defence agreement, backed by Donald Tusk and Chancellor Friedrich Merz, covering Baltic Sea protection, military mobility, cyber defence and new technology; German troops will help expand Poland's Eastern Shield fortifications on the Belarus and Russia borders. Tusk is pushing the Shield as a "top EU priority" and continues to defy President Nawrocki's veto of the €43.7bn EU defence-loan enabling law (see Nawrocki sets a Polish veto record, paralysing Tusk's agenda), vowing to access the funds anyway. The pact deepens the Germany–Poland axis and the Merz hosts the E5 in Berlin to align before the NATO summit in Turkey coordination as US commitment to European defence wavers.
By the numbers
- 17 June 2026 — pact signed in Warsaw.
- €43.7bn — the disputed EU defence loan Nawrocki vetoed.
€2bn — counter-drone network planned over two years.
- ~30,000 — illegal border-crossing attempts thwarted on the Belarus line.
Why it matters
German troops helping fortify Poland's eastern frontier is a concrete sign of Europe building its own deterrence as Washington draws back. Tusk's drive to EU-fund the Shield would mutualise the cost of NATO's eastern flank — a structural shift in who pays for European defence.
What to watch
- Whether the EU agrees to fund the Eastern Shield.
- Deployment specifics for German forces on the border.
- How Tusk routes around Nawrocki's defence-loan veto.