ICC Leaders Warn Against Diplomatic Isolation as Trump Administration Pressures Court

The International Criminal Court is under pressure as never before, and the institution's leadership is sounding an alarm that goes well beyond the court itself. On Thursday, Paivi Kaukoranta, who currently leads the ICC's Assembly of States Parties, joined eight of her predecessors in publishing a joint statement warning that coordinated efforts to isolate the court are not really about the ICC at all—they are about dismantling the entire architecture of international law that has taken decades to build.

The statement, published in the Just Security journal, arrived as the Trump administration has been actively working to weaken the court. The US has sanctioned ICC judges and officials, pressured countries to withdraw from the Rome Statute—the treaty that established the court—and encouraged non-member states to join in efforts to undermine it. The administration has also taken aim at other international institutions, sanctioning UN officials and withdrawing American participation from bodies including the UN Human Rights Council, UNESCO, the World Health Organization, and the UN climate convention. In January, Trump ordered the US to leave dozens more international and UN bodies, citing conflicts with American interests and sovereignty.

The ICC leaders framed the conflict as something far larger than any single case or country. They wrote that the court represents a collective decision by sovereign states to establish rules for prosecuting genocide, crimes against humanity, war crimes, and the crime of aggression. It is not meant to replace national justice systems but to serve as a court of last resort when those systems fail or are unwilling to act. The authors rejected the claim that joining international treaties and institutions amounts to surrendering sovereignty—they argued it is actually an exercise of sovereignty, a choice made by governments to bind themselves to shared rules.

The US opposition to the ICC has been particularly focused on cases involving Israeli Prime Minister Benjamin Netanyahu and past investigations touching on American personnel. The Trump administration has also sanctioned Francesca Albanese, the UN special rapporteur on the occupied Palestinian territory, over what Secretary of State Marco Rubio said were efforts to prompt ICC action against Israeli officials. But the ICC leadership's statement moved beyond these specific disputes to warn against a fundamental shift in how the world operates.

"The choice before us is between a world based on the rule of law and one where might decides what is right," the eight leaders wrote. They called on the ICC's 125 member states, international and regional organizations, and other supporters of international law to provide the court with political, legal, and practical support and to help governments resist pressure to withdraw. The statement carried an implicit acknowledgment that the pressure is real and that some countries may be wavering. The leaders ended with a stark formulation: "Now is the time to strengthen the institutions that uphold international law, not dismantle them." What happens next depends on whether member states heed that call or whether the diplomatic isolation the ICC fears will continue to advance.