Relationship dossier

Chile Peru

Relationship assessment

Chile and Peru combine practical cooperation and peaceful dispute resolution with historical rivalry and periodic tensions.

Chile toward Peru

+25

Chile participated in the International Court of Justice proceedings over the maritime boundary with Peru and implemented the Court’s 2014 ruling, resolving a major bilateral dispute. Chile has also pursued practical cooperation with Peru, though past espionage allegations have strained confidence.

Peru toward Chile

+25

Peru brought its maritime-boundary dispute with Chile to the International Court of Justice and accepted the Court’s 2014 ruling, resolving the issue through peaceful legal means. Peru has also engaged in practical cooperation with Chile, while past espionage allegations have contributed to bilateral tension.

Overall relationship

+25

The relationship combines the peaceful legal settlement of a major maritime dispute with practical cooperation and a history of rivalry and episodic mistrust. The 2014 International Court of Justice ruling was an important stabilizing development, but past espionage allegations illustrate the persistence of tensions.

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

Knowledge coverageStrong

Overview

Chile and Peru have a relationship shaped by historical rivalry and periodic disputes, alongside practical cooperation and peaceful resolution of major disagreements. The International Court of Justice’s 2014 maritime-boundary ruling settled a central dispute, and both governments accepted its outcome. Their relationship remains cooperative in some areas but is not free of tension, including past espionage allegations.

Areas of tension

Key developments

Major uncertainties

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