Japan's government called the United States' sanctioning of its own citizen, International Criminal Court President Tomoko Akane, "extremely regrettable," according to Kyodo News. The foreign ministry separately told Reuters the sanctions were "very unfortunate."

The US Treasury sanctioned Akane as part of a wider campaign against the court. Tokyo's statement is the first public rebuke of that campaign from a G7 government.

The Japan Times frames the episode as a test of Tokyo's own support for the ICC. HYPOTHESIS: Japan's protest could embolden other US allies that are ICC states parties to speak out, testing whether Washington's pressure fractures the rules-based order it once championed. Supporting this: Japan rarely criticizes Washington in public, so even careful language signals real discomfort, and Tokyo has long treated the ICC as a pillar of the postwar legal order. Against this: the wording stays diplomatic rather than confrontational, and Tokyo has announced no retaliatory or protective step for Akane, pointing to calibrated protest rather than rupture.

Watch whether other G7 capitals that are ICC states parties — Germany, the UK, France, Italy — echo Japan's language, and whether Tokyo moves beyond words toward any formal protest or support for Akane.