Which EU countries have US military bases?

Key Takeaways

• Germany hosts more U.S. troops than any other EU country. It has 36,436 active-duty service members and 11,416 civilian workers. The U.S. has kept a strong presence there since the Cold War.
• Italy and Spain are regional hubs. They connect U.S. military operations to the Mediterranean Sea and the Atlantic Ocean.
• Poland and Romania host smaller numbers of troops, but these numbers have become more important since Russia invaded Ukraine. Most of these troops rotate in and out rather than staying permanently.

US Military Personnel by EU Country

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Learn something new about Germany every week and make informed decisions with confidence.

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Learn something new about Germany every week and make informed decisions with confidence.

Most EU countries have few or no U.S. troops. That’s because the U.S. military doesn’t spread its people evenly across Europe. Instead, it concentrates them in a few key locations.

Germany holds the largest U.S. military footprint in the EU, with over 36,000 active-duty personnel and more than 11,000 civilian staff.

This concentration dates back to the Cold War, when West Germany became the front line of NATO’s defense system. Over time, the U.S. built a lasting network of bases there, along with command centers and supply operations.

The large number of civilian workers matters too. Unlike troops, who often get reassigned elsewhere, civilian staff usually stay in place for years. So Germany’s high number of civilian workers shows that the U.S. presence there is permanent and deeply built-in, not temporary.

Italy (12,662 troops) and Spain (3,814 troops) have fewer troops than Germany, but they’re still key parts of the system. Their job is more regional. They support U.S. operations in southern Europe and the surrounding area.

In Italy, the Sigonella base is a major support point linking U.S. forces in Europe to the Mediterranean Sea. In Spain, naval and air bases near the Strait of Gibraltar (the narrow water passage between Spain and Morocco) help the U.S. and NATO move forces between the Atlantic and the Mediterranean.

Both countries have a mix of troops and civilian workers, showing bases that are solid and long-running, but smaller in scale than Germany’s.

Further east, the structure looks different.

Poland (369 troops) and Romania (153 troops) have far fewer troops and civilian workers.

Since Russia invaded Ukraine in 2022, these countries have become more important for defending NATO’s eastern border. But the U.S. presence there is mainly meant to deter attacks and allow quick reinforcement, not to build large, permanent bases.

EU Military Manpower Changed Since 2020 ->

Most of these troops are rotational, meaning they cycle in and out rather than staying long-term. The small number of civilian workers also shows there isn’t much long-term infrastructure built up yet to support them.

Overall, the U.S. sets up its military in Europe differently country by country. Some countries have long-term bases and support staff, while others mainly host short-term or rotating deployments. This pattern reflects both current events and where the U.S. built its military infrastructure over the decades.