The transatlantic alliance is at an inflection point, with the United States now signaling a profound shift away from its traditional security commitments in Europe. Since taking office in January, U.S. President Donald Trump and various members of his administration have repeatedly insisted that Europe must take primary responsibility for its security, announced a withdrawal from future military exercises in Europe and warned that the United States may not protect its NATO allies that fail to meet the alliance's 2% of GDP defense spending target. Further alarming European leaders, Trump has repeatedly floated the prospect of annexing allied territories, including Greenland and Canada, and has refused to rule out the use of force to do so. Adding to European anxieties is the Trump administration's handling of the war in Ukraine, notably its rapprochement with Russia, exclusion of European allies from negotiations and pressure on Kyiv to enter peace talks by...
