Could Iran really bring its conflict with the US onto European soil?

NATO has assured Belgium and its other members that it is prepared to defend allied territory after the Financial Times reported on 19 August that Iranian forces had assessed possible strikes on US military assets in south-eastern Europe. The reported planning focused on Bulgaria and Cyprus and was conditional on a renewed US offensive against Iran; no evidence has emerged that Tehran has ordered an attack. For Belgium-based readers, the immediate connection is institutional rather than geographic: NATO coordinates its response from its political headquarters in Brussels, while Belgium would participate in consultations if an ally requested them.

The distinction between assessing a target and deciding to strike it is crucial. The Financial Times based its account on two people close to the Iranian establishment, and Tehran has not publicly confirmed the reported assessments. Bulgaria's Defence Minister Dimitar Stoyanov said his intelligence service had found no direct threat to Bulgarian territory. NATO nevertheless said it was ready to address any threat and described its deterrence and defence posture as strong and effective, according to The Brussels Times and Belga.

Bulgaria matters because its parliament authorised up to eight US tanker aircraft to use Bezmer Air Base between late July and early October. Cyprus, an EU member but not a NATO ally, hosts the sovereign British bases of Akrotiri and Dhekelia. These are not interchangeable cases: an Iranian strike on Bulgarian territory could raise NATO Article 5 questions, while an attack on a British sovereign base in Cyprus would engage the United Kingdom directly but would not automatically amount to an attack on the Republic of Cyprus.

The reporting should therefore be taken seriously as evidence of escalation planning, but not read as proof that attacks are imminent. Iran has medium- and longer-range missiles capable of reaching parts of south-eastern Europe, although distance complicates payload, accuracy and interception. Sabotage, cyber operations or action through intermediaries may be more plausible than a direct missile strike. Denmark's security services warned in a 2025 assessment that the threat from Iranian intelligence services to Israeli and Jewish targets in Europe was persistent and that Tehran had used criminal networks and intermediaries.

Belgium has direct experience of that less conventional threat. An Antwerp court convicted Iranian diplomat Assadollah Assadi over the failed 2018 bomb plot against an Iranian opposition gathering near Paris. In June 2026, Foreign Minister Maxime Prévot joined a multinational statement condemning lethal plotting and other hostile actions linked to Iran's Revolutionary Guard intelligence branch, Quds Force and intelligence ministry. The Belgian Foreign Ministry said those activities had targeted dissidents, journalists, Jewish communities and Israeli interests. That history gives Belgian security services reason to remain attentive even though neither Belgium nor NATO has identified Belgian territory as a target in the present report.

There are also competing European readings of the danger. NATO's institutional position emphasises deterrence: the alliance says its air defences have already intercepted Iranian ballistic missiles heading towards Türkiye and will protect every ally. Bulgarian authorities offer a more measured intelligence judgement, saying enhanced precautions are justified but no direct threat has been detected. Cyprus has gone further, with government sources telling the Cyprus Mail that Nicosia remains in contact with Tehran and that Cyprus is not a target. These positions are not necessarily contradictory; they separate military preparedness from an assessment of immediate intent.

Belgium's broader policy adds another tension. Prévot has called for de-escalation, compliance with international law and renewed diplomacy, while also demanding that Iran end destabilising activity and threats abroad. As of 23 August, the Belgian government had not issued a specific public response to the reported Bulgaria and Cyprus assessments. That silence is understandable while intelligence remains unverified, but any confirmed threat against Bulgaria would quickly become a Belgian foreign-policy and alliance matter.

The next signals will be operational rather than rhetorical: whether Bulgaria or NATO reinforces air defence around Bezmer, whether Tehran publicly denies or repeats the warning, and whether US aircraft continue using European facilities for operations connected to Iran. Until then, the fairest assessment is sober rather than alarmist. The reported planning expands the map of possible escalation, but it does not establish that Iran has chosen to attack Europe.