Eastern European states are signalling that they may support a maritime security mission in the Strait of Hormuz, but their warning is clear: Europe cannot allow a Gulf deployment to weaken deterrence against Russia.
Baltic support for a possible European mission in the Strait of Hormuz has exposed a wider strategic problem for Europe. The same governments that understand the importance of keeping global energy routes open are also warning that military attention and resources cannot be diverted from NATO’s eastern flank while Russia remains the central security threat to Europe.
The issue has gained urgency as NATO foreign ministers meet in Sweden and allies discuss how to balance support for Ukraine, deterrence against Russia and the security consequences of the conflict involving Iran. NATO is not currently drawing up operational plans for a mission in the Strait of Hormuz, according to the alliance’s Supreme Allied Commander Europe, General Alexus Grynkewich, who told Reuters that any such move would require a political decision by member states.
The Strait of Hormuz is one of the world’s most important maritime choke points, carrying a significant share of global oil and liquefied natural gas trade. Any sustained disruption would affect energy prices, shipping costs and industrial supply chains in Europe. For that reason, several European governments have supported the principle of a multinational effort to secure freedom of navigation. A UK government statement said Britain, France and partner countries had expressed political support for an independent and defensive maritime mission.
Eastern European governments are not dismissing that concern. Lithuania, Latvia and Estonia have long argued that European security should be understood in broad terms, covering not only Russia but also maritime routes, cyber threats, energy security and wider instability. According to Euractiv, Baltic officials have indicated that they could support a Hormuz mission, while stressing that it must not come at the expense of deterrence against Moscow.
That qualification is central. The Baltic states border Russia or sit close to Russian military pressure points. They have invested heavily in defence, supported Ukraine, and repeatedly warned that any weakening of NATO’s eastern flank would invite further risk. From Tallinn, Riga and Vilnius, the security debate is not abstract. It concerns air defence, ammunition, allied troop deployments, surveillance, cyber resilience and the ability to respond quickly to military pressure.
A maritime deployment in the Gulf would not necessarily require large land forces, but it would still draw on scarce capabilities. European navies have limited numbers of deployable vessels, crews, maritime surveillance assets, air-defence systems and command resources. Many of these same assets are needed for the Baltic Sea, the North Sea, the Mediterranean, the Red Sea and the protection of critical undersea infrastructure.
The problem is therefore not whether Europe has an interest in the Strait of Hormuz. It clearly does. The question is whether European states can support a new maritime security operation without reducing their capacity to deter Russia, support Ukraine and maintain readiness closer to home.
This concern has become sharper because Europe is already under pressure from Washington to take on more responsibility for its own defence. US President Donald Trump has repeatedly pressed NATO allies to increase military spending and contribute more to collective security. At the same time, European allies are seeking clarity over the future of the American military posture on the continent. A report by the Financial Times said NATO allies were pressing the United States for more information about possible troop reductions in Europe.
If US support becomes less predictable, European governments will have to be more cautious about deploying limited capabilities far from the continent. A Hormuz mission may be justified by energy security and freedom of navigation, but it would also test whether Europe can operate across several theatres at the same time.
The Baltic position reflects that dilemma. These countries are not arguing for strategic isolation or for Europe to ignore the Gulf. They are arguing that any wider security role must be matched by real capability. Political support for maritime security cannot substitute for ships, crews, air cover, logistics and long-term sustainment. Nor can it be allowed to reduce resources available for eastern-flank defence.
For NATO, the issue is particularly sensitive. A formal alliance mission in the Strait of Hormuz would require political consensus among 32 members, and several governments have signalled reluctance. Some fear that NATO involvement could draw the alliance more directly into a Middle East conflict. Others are concerned that such a mission would blur the alliance’s focus at a time when Russia remains its primary conventional threat.
A European-led or multinational mission outside NATO structures may therefore be more likely than a formal NATO operation. But even that would not solve the central problem. The same European countries would still have to provide the assets, and those assets would still come from finite military inventories.
The debate over Hormuz is consequently a test of Europe’s ability to match ambition with resources. European governments want to secure trade routes, deter Russia, support Ukraine, manage instability in the Middle East and reduce dependence on the United States. Those goals are not mutually exclusive, but they require defence capacity that many countries are still struggling to build.
The Baltic warning should be read in that context. Europe can support maritime security in the Gulf, but not by weakening the deterrence posture on its own eastern border. If governments want a wider global security role, they will need to fund and produce the capabilities required for it. Without that, every new mission will become a choice between competing risks.
