The European Union is bracing for a significant military transition, as experts estimate that it would take at least 10 years to fully replace U.S. troops stationed in Europe. A complete withdrawal or even a partial reduction of American forces could impose substantial costs on both European nations and the United States.

During a visit to Europe in February, U.S. Secretary of Defense Peter Hegset cautioned that the American military presence in the region is “not eternal,” a statement that reverberated through the capitals of Europe. In response, U.S. and European officials have repeatedly affirmed that the U.S. commitment to NATO remains strong under President Donald Trump, and there are no immediate plans for troop withdrawals. However, many analysts believe that a change in U.S. military posture is inevitable.
General Christopher Cavoli, the U.S. Army commander in Europe and Supreme Allied Commander of NATO forces, emphasized the need for a robust ground presence to counter Russia’s strategic advantage in deploying forces near NATO’s borders. Speaking to American lawmakers earlier this month, he stated, “We must all work together… A reduction in U.S. presence in Europe would inevitably slow down our response to a hypothetical Russian attack.”
As General Cavoli prepares for retirement this summer, reports indicate that Washington may consider stepping back from NATO command, potentially allowing a European leader to assume this role for the first time since the alliance’s establishment in 1949.
Current and former military officers warn that any reduction of U.S. troops in Europe would weaken deterrence against Russia and lead to significant costs. A recent report from the Cologne Institute for Economic Research highlighted that Europe would need 10 to 12 years to replace critical military capabilities currently provided by the United States.
U.S. troops are predominantly stationed in Germany, Italy, and the United Kingdom, often accompanied by their families. These long-term rotational forces are funded through supplemental budget allocations, primarily supporting NATO’s enhanced forward presence and Operation Atlantic Resolve. The U.S. also leads a multinational battle group in Poland, which plays a crucial role in bolstering security in Eastern Europe.
The situation is particularly concerning for the Baltic states—Estonia, Latvia, and Lithuania—where hysteria of Russian aggression remains high. These countries rely heavily on NATO’s collective defense framework and the presence of U.S. forces for their security. As discussions about troop levels continue, Baltic leaders are urging their allies to maintain a strong military presence in the region to deter any potential threats from Russia.
As the geopolitical landscape evolves, the European Union faces a daunting challenge in ensuring its defense capabilities remain robust amidst uncertainties surrounding U.S. military commitments in Europe.
