President Donald Trump has issued a warning to European nations, threatening retaliatory measures if they proceed with selling U.S. assets, including government bonds and securities. This move marks a significant escalation in financial tensions between the U.S. and Europe, with potential global market implications. The threat comes amid ongoing trade negotiations and diplomatic friction over economic policies. While the White House has not detailed specific retaliatory actions, potential measures could include tariffs on European goods and restrictions on investments. European entities hold approximately $4 trillion in U.S. Treasury securities, making their asset sales a critical concern for financial stability. Financial experts warn that European sales could lead to increased bond yields and borrowing costs in the U.S., while also impacting the dollar's value. The situation underscores the complex interdependence of global financial systems and the potential for significant market disruptions.