Tokyo Report | Diplomacy | East Asia | Southeast Asia

The Next Phase of Japan-Vietnam Relations

The question now is whether the two countries can turn their increasingly ambitious partnership into tangible economic and strategic results.

Japanese Prime Minister Takaichi Sanae meets with Vietnam’s President and Communist Party chief To Lam in Hanoi, Vietnam, May 2, 2026.

Japan-Vietnam relations have entered a new phase. Since the November 2023 upgrade to a “Comprehensive Strategic Partnership for Peace and Prosperity in Asia and the World,” the two governments have steadily expanded cooperation across economic security, the green transition, advanced technology, maritime and security cooperation, and development. The question now is not how much more can be added to the bilateral agenda, but whether the two countries can turn an increasingly ambitious partnership into tangible economic and strategic results.

This evolving relationship reflects two distinct strategic calculations. They are complementary, but not identical. For Japan, Vietnam is becoming increasingly important to economic security, supply chain diversification, and resilience, particularly in energy and critical minerals. In May 2026, the two governments identified economic security as a new priority for bilateral relations, focusing on energy, critical minerals, AI, semiconductors, and space. For Vietnam, the emphasis remains on independence, self-reliance, diversification, and multilateralization in its external relations. The partnership will work best when it expands both countries’ strategic options rather than forcing alignment into an exclusive framework.

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Japan-Vietnam relations have entered a new phase. Since the November 2023 upgrade to a “Comprehensive Strategic Partnership for Peace and Prosperity in Asia and the World,” the two governments have steadily expanded cooperation across economic security, the green transition, advanced technology, maritime and security cooperation, and development. The question now is not how much more can be added to the bilateral agenda, but whether the two countries can turn an increasingly ambitious partnership into tangible economic and strategic results.

This evolving relationship reflects two distinct strategic calculations. They are complementary, but not identical. For Japan, Vietnam is becoming increasingly important to economic security, supply chain diversification,........

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