Trump keeps making threats. Washington and the world have stopped flinching.

LONDON — When President Donald Trump strode into the Rose Garden in April 2025 brandishing a poster board of tariff hikes, the world leaped as if a fire alarm had gone off. Markets shed trillions of dollars, envoys rushed to Washington, and more than 75 governments scrambled to negotiate, some scrapping carefully prepped countermeasures in a rush to cut deals. Sixteen months later, the flabbergasting threats keep piling up — to weaponize trade, annex Canada, seize Greenland, abandon NATO, annihilate Iran — but the alarm bells have gone quiet. World leaders are slower to rattle as they’ve seen the president…