Relationship dossier
Japan
Ukraine
Relationship assessment
Japan supports Ukraine through aid, sanctions on Russia and long-term cooperation, while the two governments also work together on reconstruction.
Japan toward Ukraine
+65Japan has supplied Ukraine with substantial financial and humanitarian assistance, imposed sanctions on Russia in response to its invasion of Ukraine, and signed a long-term security and cooperation agreement with Ukraine in 2024.
Ukraine toward Japan
+35Ukraine has pursued bilateral cooperation with Japan, including arrangements for reconstruction cooperation, and provided humanitarian assistance to Japan following the 2011 earthquake.
Overall relationship
+55The relationship is shaped by Japan's sustained support for Ukraine in response to Russia's invasion and by bilateral cooperation on security and reconstruction. These commitments make the partnership substantial, although the practical scope and durability of some arrangements remain uncertain.
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
Japan has provided Ukraine with substantial financial and humanitarian assistance, imposed sanctions on Russia over its invasion, and signed a long-term security and cooperation agreement with Ukraine in 2024. Ukraine has pursued bilateral cooperation with Japan, including through reconstruction arrangements, and provided humanitarian assistance to Japan following the 2011 earthquake. The relationship is marked by strong Japanese support for Ukraine and practical bilateral cooperation.
Key developments
Ukraine provided humanitarian assistance to Japan following the earthquake and tsunami.
Japan and Ukraine signed a bilateral security and cooperation agreement establishing a framework for long-term support.
Major uncertainties
- The implementation and long-term scope of Japan's security and cooperation commitments are uncertain.
- The scale and continuity of bilateral reconstruction projects remain unclear.