Trump’s pressure on NATO is reshaping Europe’s defenses. Will it break the alliance?

Key Points:

• The Trump administration's military realignment in Europe has led to troop reductions at key NATO bases like Romania's Mihail Kogalniceanu Air Base, causing concern amid increased Russian aggression, yet the U.S. continues to invest in and rely on European bases for strategic operations, such as air refueling missions during the Iran conflict.
• Despite Trump's criticism of NATO allies and threats to cut troop levels, bipartisan political forces and defense contractors in the U.S. have limited the extent of withdrawal, though his approach has eroded transatlantic trust, prompting some NATO members to diversify away from dependence on U.S. military technology and suppliers.
• NATO faces challenges adapting to modern warfare as demonstrated by the Ukraine conflict, where cheap drones have transformed battlefield dynamics, exposing vulnerabilities in air and missile defense systems and pushing European countries to develop alternatives to U.S.-dominated technologies like the Patriot missile system.
• The U.S. Pentagon is conducting a rigorous review of its force posture in Europe, assessing allies' military, financial, and ideological commitments amid concerns about the future of American engagement in NATO and the alliance's ability to deter Russian aggression effectively.
• European and Canadian NATO members are increasing defense spending and exploring procurement of non-U.S. military equipment to reduce reliance on American technology, reflecting growing doubts about the durability of U.S. security commitments under Trump’s "America First" policy and signaling a potential shift in the transatlantic defense landscape.