President Trump set the stage for fresh market turbulence on Monday, announcing upcoming tariffs on cars, aluminium, and pharmaceuticals while reviving his unusual push to acquire Greenland. "We've been ripped off by every country," Trump declared, framing both moves as matters of national security. The Commerce Department added to the drama by revealing plans for a new "External Revenue Service" to collect these tariffs, set to launch April 2—the same day the new trade penalties take effect.While the tariffs threaten to disrupt key industries, the Greenland comments introduced an unexpected geopolitical wrinkle, drawing sharp criticism from Danish leaders. Together, these developments signal an administration doubling down on economic nationalism, leaving businesses and investors bracing for more uncertainty. The only certainty? April could bring major shocks to global trade.