Relationship dossier
Vatican City
Italy
Relationship assessment
A close, treaty-based relationship linking Vatican City’s sovereignty with Italy’s practical cooperation and shared institutional framework.
Vatican City toward Italy
+75The Holy See maintains diplomatic relations and regular institutional engagement with Italy, while the Vatican City State operates within the framework established by the Lateran Treaty. The Holy See’s distinct religious and diplomatic role can also produce disagreements with Italian governments on social and public-policy issues.
Italy toward Vatican City
+75Italy recognizes Vatican City’s sovereignty under the Lateran Treaty and cooperates with it on practical matters including security and essential services. The treaty framework has sustained close relations while preserving the Holy See’s distinct status and functions.
Overall relationship
+80The 1929 Lateran Treaty established a durable framework recognizing Vatican City’s sovereignty and regulating relations with Italy. The parties’ geographic and institutional interdependence supports sustained cooperation, while the Holy See’s independent religious and diplomatic role and occasional policy disagreements prevent the relationship from being wholly free of friction.
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
Relations are shaped by the close geographic and institutional interdependence of the Holy See and Italy, with Vatican City governed under the 1929 Lateran Treaty framework. Italy recognizes Vatican City’s sovereignty and provides essential services and security cooperation, while the Holy See maintains a distinct diplomatic and religious role. The relationship is close and sustained, alongside occasional disagreements over policy matters.
Areas of tension
- Occasional disagreements between the Holy See and Italian governments over social and public-policy issues.
Key developments
The Lateran Treaty established Vatican City as a sovereign state and defined the relationship between the Holy See and Italy.
Major uncertainties
- The extent and implementation of specific service, security, and financial arrangements may change over time.
- The scope of cooperation on individual policy disputes varies by government and issue.