Donald Trump has re‑emerged as the Tariff King, tweeting a barrage of confrontational posts about Greenland and European allies just days before the World Economic Forum in Davos. His messages, including a snide remark at NATO and a mock flag over Greenland, signal a stance that could reshape trade dynamics.

Trump’s rhetoric follows a pattern of tariff threats that have rattled European markets, with analysts noting a 25% tariff proposal on Iran’s partners that never materialized. Investors now weigh the risk of sudden duties on goods ranging from steel to tech, while European leaders brace for potential supply‑chain severe disruptions.

Ahead of Davos, Trump has opened a narrow diplomatic window, promising talks with “various parties” on Greenland. Market watchers will monitor whether the U.S. follows through on tariffs or uses force, as any escalation could trigger a broader trade war and shift global commodity flows for investors in the future.