US Markets Decline Amid Trump's Tariff Threats on Europe Over Greenland Proposal

US financial markets experienced significant declines following President Donald Trump's renewed tariff threats against eight European countries linked to his proposal to acquire Greenland. The S&P 500 dropped over 2%, erasing year-to-date gains, while major indexes and tech stocks faced broad sell-offs. US Treasury yields rose sharply, with the 10-year yield surpassing 4.28%, reflecting investor caution. The dollar weakened to near one-week lows amid concerns over escalating US-EU trade tensions. Global markets, including Asian equities and Japanese bonds, also reacted to the heightened geopolitical uncertainty, prompting increased volatility and safe-haven asset demand.