Relationship dossier
Greece
Iran
Relationship assessment
Diplomatic engagement alongside serious tanker and oil-cargo disputes
Greece toward Iran
-15Greece has supported European diplomatic efforts to address Iran’s nuclear programme. In 2022, Greek authorities detained the Iranian-flagged tanker Lana and its cargo was temporarily subject to confiscation proceedings, prompting a sharp bilateral dispute.
Iran toward Greece
-35In 2022, Iran seized two Greek-flagged tankers in retaliation for Greece’s detention of the Iranian-flagged Lana and the handling of its oil cargo. The detentions were a serious confrontation with Greece.
Overall relationship
-20Relations combine Greek support for diplomatic engagement over Iran’s nuclear programme with a severe 2022 maritime and oil-cargo dispute. The tanker confrontation weighs on the relationship, while the extent of sustained cooperation beyond diplomacy is unclear.
How to read these scores
Scores are rough judgments, not objective measurements or current verification. Directional scores describe government policy and conduct, not public opinion. The overall score is an independent estimate, never an average.
- −100
- Extreme sustained hostility
- −50
- Substantially adversarial
- 0
- Mixed or neutral, supported by knowledge
- +50
- Substantially cooperative
- +100
- Exceptionally close sustained partnership
“Not assessed” means there is no recorded score. Pair existence makes no claim about diplomatic recognition or established relations.
Relationship context
Overview
Greece has supported European diplomatic efforts over Iran’s nuclear programme, while disputes over oil cargoes and the seizure of Greek- and Iranian-linked tankers have strained relations. Iran’s 2022 detention of Greek tankers was a particularly serious bilateral confrontation. The scope and durability of practical cooperation beyond diplomacy are unclear.
Areas of tension
- The 2022 detention in Greece of the Iranian-flagged tanker Lana and proceedings over its oil cargo.
- Iran’s 2022 seizure of two Greek-flagged tankers in retaliation for the Lana dispute.
Key developments
Iran seized two Greek-flagged tankers following Greece’s detention of the Iranian-flagged Lana and the handling of its oil cargo; the dispute was later resolved.
Greece supported European diplomatic efforts concerning Iran’s nuclear programme.
Major uncertainties
- The extent of sustained Greek-Iranian cooperation outside nuclear diplomacy is unclear.
- The implementation and lasting effects of the arrangements that resolved the 2022 tanker and oil-cargo dispute are unclear.