A fresh warning from President Donald Trump is rattling Europe just hours before the World Economic Forum in Davos. At the center of the standoff: Greenland. Trump has vowed to match any European trade retaliation “move for move,” after imposing new tariffs on Denmark and its allies. European leaders are pushing back, stressing Greenland’s sovereignty and warning against escalation. Despite the sharp rhetoric, Trump says a deal is still possible — even imminent. But with tariffs already in place and military options no longer dismissed, Davos becomes more than a summit. It is now the testing ground for alliance unity, leverage, and limits.