BERLIN — Germany’s chancellor-in-waiting in a fiery Bundestag debate Thursday urged Green lawmakers to pass constitutional amendments that would unleash up to €1 trillion in new spending to bolster the country’s military and invest in its economy.

German Chancellor-in-waiting Friedrich Merz is open to making concessions to the Greens to secure support for constitutional changes that would unleash hundreds of billions of euros in defense and infrastructure spending.

The Greens vow to foil the chancellor-in-waiting’s historic plan to invest big in defense and infrastructure. But it may just be a negotiating gambit.