French President Emmanuel Macron has called the G7 gathering in Hiroshima a summit of "unity and support" for Ukraine.

Macron said on Sunday morning that Japan, as the summit chair, played a key role in showing that the war in Ukraine is not only about Europe but is a war to defend international security.

Macron said the summit gave Ukraine a chance to directly explain the country's situation to India, Indonesia, Brazil and others with which it has had few exchanges, and remind the international community it is essential to support the UN Charter, national sovereignty and territorial integrity.

Ukrainian President Volodymyr Zelenskyy flew to Japan on a French government plane.

Macron said France is a country that builds peace and seeks solutions. He said it is France's honor, and within its role as a diplomatic power, to have enabled Zelenskyy to talk to the G7 leaders and to other countries that have little opportunity to hear him speak.