Japan has taken a measured approach in response to the United States’ decision to sanction Tomoko Akane, the president of the International Criminal Court (ICC), refraining from directly criticizing the Trump administration. Prime Minister Sanae Takaichi expressed regret over the sanctions, describing them as “very unfortunate,” and emphasized Japan’s intention to continue dialogues with both the US and other involved nations. Japanese officials have highlighted the necessity of maintaining positive relations with the US, Japan’s sole treaty ally.
As the ICC’s largest financial supporter, Japan has invested heavily both financially and in terms of personnel. Akane, who is a former Japanese prosecutor and a national of Japan, was appointed as an ICC judge in 2018. She made history by becoming the first Japanese citizen to be elected as the court’s president in 2024. This leadership role underscores Japan’s significant involvement with the ICC.
The US has adopted a more antagonistic stance toward the ICC. In February 2025, President Donald Trump approved sanctions targeting ICC personnel. Later, US Secretary of State Marco Rubio stated Washington’s intention to weaken the court and to persuade its allies to oppose it. Japan, prioritizing its ties with Washington, previously opted out of joining an international statement condemning these US-imposed sanctions.
Despite Japan’s previously cautious public stance, the government has consistently supported the ICC and Akane. During Akane’s visit to Japan in January, Prime Minister Takaichi met with her and reaffirmed Tokyo’s dedication to backing the court’s mission. Akane has been vocal in her criticism of Japan’s earlier decision to avoid condemning the US sanctions, urging the nation to adopt a stronger stance in defense of the ICC and the principles of international law.