The Iran war’s impact on the NATO alliance has produced its most visible institutional consequence: the United States is withdrawing approximately 5,000 troops from Germany — a decision publicly attributed to Biden-era temporary deployment but privately understood by everyone in both capitals to be connected to the friction between Trump and Chancellor Merz over the Iran war.
The Withdrawal
The Pentagon said Friday the US will withdraw roughly 5,000 troops from Germany over the next year — a move President Donald Trump said is just the beginning. The decision comes after Trump lashed out at German Chancellor Friedrich Merz over his criticism of the US war with Iran.
German Chancellor Friedrich Merz downplayed any connection between the US announcing the withdrawal of 5,000 troops from Germany and friction with US President Donald Trump over the war with Iran. “There is a contingent of American soldiers in Europe whom Joe Biden has stationed here on a temporary basis,” Merz told German broadcaster ARD. “There has been talk of their withdrawal for quite some time now.” Merz added “not everything we’ve been hearing over the last few days is actually new.”
Merz’s careful public disavowal of any connection is itself diplomatically significant — he is choosing not to confirm what every analyst in Berlin and Washington understands to be true, because confirming it would escalate the dispute rather than contain it.
The Germany-Iran War Dispute in Context
Germany has been the most prominent US ally to publicly disagree with the Iran war’s conduct. Merz’s criticism of Trump’s Iran policy — specifically his public expressions of concern about civilian casualties and the humanitarian situation — was the direct trigger for Trump’s public attacks on Germany. The 5,000 troop withdrawal followed within days.
But Germany has not been a neutral bystander. It contributed the minesweeper Fulda to the Hormuz clearance coalition — now pre-positioned in the Mediterranean. It voted in the Bundestag to increase defence spending specifically in response to the security environment the Iran war has created. And on Sunday, German Foreign Minister Wadephul called Araghchi directly and aligned with Rubio’s specific language:
German Foreign Minister Johann Wadephul said he highlighted that Berlin and Washington share the “same goal” in a phone call with his Iranian counterpart. “As a close US ally, we share the same goal: Iran must completely and verifiably renounce nuclear weapons and immediately open the Strait of Hormuz.”
This is Germany threading the needle: disagreeing with the war’s conduct while aligning publicly with its stated objectives. The Wadephul-Araghchi call is simultaneously a repair of the Trump-Merz relationship (by adopting US language) and a continuation of German diplomatic engagement with Iran (by making direct contact).
The Broader NATO Picture
The Iran war has exposed a fracture in the NATO alliance that has been building for years but has now become institutionally consequential. France and the UK are leading the 30-nation Hormuz clearance coalition — but the coalition explicitly declined the US request to use force to reopen the strait.
Germany contributed a minesweeper but will not deploy it without Bundestag approval. Italy, Spain, and Canada have maintained diplomatic channels with Iran that the US has not endorsed.
German Chancellor Friedrich Merz downplayed any connection between the US announcing the withdrawal of 5,000 troops from Germany and friction with Trump over the war with Iran. Germany’s Foreign Minister Johann Wadephul said he highlighted that Berlin and Washington share the “same goal” in a phone call with his Iranian counterpart.
The alliance is not fracturing into permanent estrangement. But it is visibly negotiating different levels of participation in a US-led conflict that most European capitals neither endorsed nor anticipated.
The 5,000 troops leaving Germany is the most visible institutional expression of that negotiation — and Trump’s statement that it is “just the beginning” suggests it is designed as pressure on European allies to align more fully with US policy, not merely as a logistical redeployment.
For the Iran war specifically, the NATO fracture means the 30-nation Hormuz clearance coalition — which will be needed the moment a deal is signed and mine-clearing begins — is operating under political tensions between its largest member (the US) and its European contributors. Whether those tensions can be managed during the clearance operation is a question that will become urgent the moment diplomacy produces a deal.
