European markets set to slump at the open after Trump's Greenland tariffs threat

The prospect of increased tariffs by the U.S. could exacerbate existing tensions in transatlantic trade relations, potentially leading to retaliatory measures from European countries. This situation highlights the fragility of global markets, where geopolitical events can swiftly impact investor confidence and stock performance. Traders will be closely monitoring the situation for further developments, as the economic repercussions could be significant.