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Relationship dossier

Japan Samoa

Relationship assessment

Japan-Samoa ties feature development cooperation and an investment agreement.

Japan toward Samoa

+30

Japan has provided Samoa with development assistance, including grant aid and technical cooperation, supporting practical bilateral cooperation. Japan and Samoa have also concluded an agreement promoting and protecting investment.

Samoa toward Japan

+20

Samoa has engaged with Japan through the Pacific Islands Leaders Meeting and concluded a bilateral agreement with Japan promoting and protecting investment, providing a framework for bilateral economic cooperation.

Overall relationship

+25

The relationship has a cooperative foundation in Japanese development assistance to Samoa and a bilateral investment agreement. Their engagement through the Pacific Islands Leaders Meeting adds a regional channel for cooperation, although the extent and outcomes of these ties are not fully clear.

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 coverageLimited

Overview

Japan and Samoa maintain cooperative bilateral ties, particularly through Japanese development assistance and a bilateral investment agreement. Samoa also engages with Japan through the Pacific Islands Leaders Meeting. These arrangements indicate practical cooperation, though its scope across other areas is less clear.

Key developments

Major uncertainties

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