The United States has begun a review of its military presence in Europe, raising fresh questions about the future of American involvement in European security.
The move comes after repeated criticism from President Donald Trump and his administration that European NATO members should take greater responsibility for defending the continent.
The review is intended to examine whether NATO is moving quickly enough toward a model in which European allies take the leading role in conventional defense.
US Under Secretary of Defense Elbridge Colby said the goal is for European members to assume primary responsibility for their own defense, reinforcing the administration’s broader push to reduce Europe’s reliance on Washington.
Europe Faces Pressure to Strengthen Its Defense
The debate has gained additional importance following the conflict involving Iran.
Washington has criticized some European governments over their response and over restrictions on the use of American bases for military operations.
The disagreements have added pressure to an already difficult discussion about how responsibilities and resources should be divided within NATO.
European governments have increasingly acknowledged that they must strengthen their own defense capabilities.
NATO members agreed at the 2025 Hague summit to increase defense and security related investment toward 5% of GDP annually by 2035, including at least 3.5% for core defense requirements.
The European Union is also developing its own defense readiness plans.
The European Commission’s Readiness Roadmap 2030 focuses on closing military capability gaps, strengthening air and drone defenses, improving military mobility and expanding European defense production.
EU leaders have also called for Europe’s defense readiness to be significantly strengthened by 2030.
Germany has warned that Europe must be prepared for a future in which the United States reduces its military presence on the continent.
At the same time, European leaders continue to emphasize that stronger European defense should complement NATO rather than replace the alliance.
The review could therefore become an important turning point for transatlantic security.
A larger European role would require major investment, closer cooperation and stronger military capabilities, while any significant reduction in US involvement could change the balance within NATO.
For now, Washington’s message is clear, Europe is expected to do more for its own defense, while European governments face growing pressure to turn those commitments into concrete capabilities.
