The agreement between centrist parties, led by the likely next chancellor, Friedrich Merz, was billed as a response to America’s shrinking security guarantees.

An agreement has been reached on plans by German chancellor hopeful Friedrich Merz to massively ramp up public borrowing, a source from the Greens party said on Friday, adding: "We are satisfied." Greens' support is seen as crucial to Merz's bid to pass the debt plan with a two-thirds majority in Germany's outgoing parliament.