Today there are about 80,000 U.S. troops in Europe — a far cry from the nearly half‑million America kept on the continent during the Cold War — and their future locations are at the center of a Pentagon posture review due to wrap up in early November.
The Pentagon posture review and troop-count mechanics
The Department of Defense is concluding a six‑month review of the U.S. military footprint overseas that reportedly considers dramatic cuts to forces in Europe. Current U.S. personnel in Europe total roughly 80,000: about 65,000 on typical three‑year assignments accompanied by dependents, and about 15,000 on shorter heel‑to‑toe rotational deployments without dependents. Rotationally‑deployed troops typically serve roughly nine months before being replaced by another unit of similar size and capability. Those persistent rotational deployments began as a response to Russia’s first invasion of Ukraine in 2014.
Recent force moves: Romania and Poland
The Defense Department has already reduced some of its rotational presence. Late last year it eliminated a rotationally‑deployed infantry brigade — about 4,000 troops — to Romania and southeastern Europe; that drawdown was relatively straightforward because those forces were rotational and not accompanied by dependents. Earlier this year, the department tried to cancel a rotationally‑deployed armored brigade normally sent to Poland and northeastern Europe, but that decision was reversed after Poland’s president weighed in with President Donald Trump.
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Get a security leadCongressional requirements, allied coordination, and domestic basing bids
News of deeper cuts inside the Pentagon prompted a more formal review process, apparently to satisfy at least some of Congress’s requirements should force levels fall below 76,000. The administration also sent a questionnaire to NATO members in August about their support for U.S. basing and American foreign policy more broadly. At the same time, the Pentagon has asked U.S. state leaders to bid on hosting a new military base — an indication that planners expect to need space in the United States if thousands of troops and dependents relocate from Europe to America. Taken together, those moves make deep cuts not merely possible, but, in the author’s view, “rather likely.”
The fiscal math of moving tens of thousands of troops home
Removing forces from Europe carries immediate and long‑term price tags. Drawing on historic Pentagon spending between 2005 and 2011 to expand Fort Bliss to accommodate an additional 25,000 troops, the source estimates that building facilities to host 15,000–25,000 U.S. troops plus their dependents would likely cost at least $8 billion, in inflation‑adjusted terms. Those are upfront construction and base‑garrison costs to provide housing, family support, training ranges and related infrastructure in the United States.
Vacated European facilities and higher operating costs for power projection
Departing Europe would also mean giving up host facilities that currently reduce the cost and time of projecting U.S. power. The piece offers a concrete example from recent attacks on Iran: roundtrip bombing missions from the United States to Iran take about 36 hours, while bombing missions from the United Kingdom take as little as 15 hours roundtrip. Operating costs cited for the bombers are $97,600 per hour for a B‑1 and $66,700 per hour for a B‑52. The article reports the United States conducted 62 bombing missions against Iran by early April, 18 of which left from North America; assuming the remainder flew from Europe, having European basing saved roughly $75 million in operating costs in the first five weeks of that campaign alone.
What this means for the American taxpayer, NATO allies, and the Department of Defense
- American taxpayers: Expect large, front‑loaded construction bills if tens of thousands of service members and dependents relocate to the United States — the estimate cited is at least $8 billion for 15,000–25,000 personnel — plus potentially higher operating costs when forward bases are no longer available for time‑sensitive missions.
- NATO allies: Allies will face decisions about taking on vacated facilities or reconfiguring host‑nation support. The administration’s August questionnaire to NATO members is a direct signal that allied coordination will be required if posture changes proceed.
- The Department of Defense: Planners must weigh savings from force reductions against the cost of domestic construction, loss of lower‑cost European basing for power projection, and the strategic implications of a reduced presence while Russia’s war in Ukraine continues and hybrid activities reportedly increase.
The author, John R. Deni, frames the tradeoff directly: shifting assets — for example toward the Pacific — “may make sense,” but doing so now, according to the analysis, carries significant strategic risk vis‑à‑vis Russia and likely higher fiscal cost at a moment of large U.S. debt. The posture review is expected to conclude in early November; the record cited here makes clear the decision will be as much fiscal and logistical as it is strategic.
