US Sanctions on the ICC Will Fracture the Rules-Based Order

The Court as Target

The Trump administration has moved from rhetoric to action against the International Criminal Court. According to the Wall Street Journal, officials are now preparing broad sanctions targeting the tribunal — not just a few individual prosecutors, but a sweeping punitive framework that would strike at the institution’s operations and personnel. The scope of the proposed measures, according to people familiar with the deliberations, would encompass not only court officials but also national counterparts who cooperate with ICC investigations, legal representatives who appear before the court, and financial intermediaries that process payments on its behalf.

The shift is significant. Previous US hostility toward the ICC was largely symbolic: visa restrictions, public vilification, the 2020 sanctions on then-Chief Prosecutor Fatou Bensouda and a deputy that were widely condemned and quietly allowed to lapse. The 2020 executive order authorizing sanctions against ICC personnel was challenged in US courts and effectively neutered. What is being prepared now appears to be structural — something designed with more legal scaffolding and more institutional reach, potentially anchored in existing antiterrorism or economic emergency statutes rather than the narrower tools used in the first term. This could disrupt the court’s ability to function and create real consequences for any country that cooperates with it.

Why the Timing Matters

The move arrives as the Trump administration is simultaneously recalibrating its relationships across every major theater. The same day this report surfaced, Japanese media placed it on front pages alongside breaking stories about North Korean missile launches, US-China trade dialogues, and Russian election results. That editorial clustering is telling: Tokyo sees the ICC sanction plan not as an isolated Washington decision but as part of a broader pattern of institutional erosion — one that runs parallel to America’s withdrawal from the Iran nuclear deal, its ambivalence toward the WTO appellate body, and its repeated refusal to ratify the Convention on the Law of the Sea.

Prime Minister Takaichi is scheduled to meet President Trump at the White House on September 22, during a trip to the UN General Assembly. The timing creates an awkward diplomatic geometry. Japan has long positioned itself as a champion of international law and multilateral institutions. It ratified the Rome Statute in 2007 and has participated in ICC proceedings as a state party — contributing peacekeepers to tribunals, funding court programs, and publicly advocating for the court’s independence. Sanctioning the court the week before the prime minister’s Washington visit forces Tokyo into an uncomfortable position — one it cannot easily resolve with diplomatic language alone. Silence would look like complicity. Opposition would risk a sharper US response.

The Legal Architecture Under Fire

The ICC exists within a specific postwar design. It was never meant to replace national courts. Its complementarity principle means it only intervenes when a state is unwilling or unable to prosecute crimes itself — genocide, crimes against humanity, war crimes, and aggression. That constraint was the compromise that won over dozens of countries, including Japan, Germany, and the Netherlands — nations that had every reason to expect the court could one day sit in judgment over their own actions or allies’ actions. The statute was drafted with that reciprocity in mind.

Broad US sanctions upend that calculus entirely. If the cost of cooperation with the ICC includes exposure to US financial sanctions, restricted access to American banking systems, potential criminal liability for officials who interact with the court, and the revocation of visas for family members, then membership in the Rome Statute becomes a liability rather than a commitment. Countries will reassess. Some will quietly distance themselves. The court’s legitimacy doesn’t need to be destroyed — it just needs to become inconvenient. A court that can no longer secure the cooperation of member states loses its evidentiary reach, its investigative capacity, and ultimately its deterrent function.

Who Loses First

The first casualties will be smaller states without the leverage to absorb American pressure. Nations in Africa and Southeast Asia that have brought cases before the court or supported its investigations will face a choice: stand with the ICC and risk secondary sanctions, or distance themselves and watch the court’s docket shrink further. For countries like Uganda, the Democratic Republic of Congo, or Kenya — states that have actively referred situations to the ICC or welcomed its presence — the dilemma is acute. These governments invested political capital in the court’s establishment. Abandoning it now would signal that institutional commitments are conditional on great-power approval.

Japan occupies a more complex middle ground. As a major economy and a state party to the Rome Statute, Tokyo has both the means and the legal obligation to engage with the court. But it also depends on the US security umbrella and maintains a foreign policy that avoids direct confrontation with Washington. The contradiction is becoming untenable. Every statement of support for international law rings hollow if Tokyo simultaneously tolerates sanctions against the primary mechanism for enforcing that law. Japanese diplomats are reportedly already fielding inquiries from European counterparts about whether Japan will maintain its cooperation with ICC investigations — particularly those involving third countries where Japan has strategic or economic interests.

The Precedent Problem

What distinguishes this moment from earlier US-ICC friction is the scope. Previous administrations targeted individuals — prosecutors, judges, defense counsel. This appears to target the institution itself: its budget streams, its administrative infrastructure, its network of national cooperation. The precedent it sets extends far beyond the Hague. If the United States can impose economic sanctions on an international judicial body — a body that operates under treaties ratified by nearly 124 countries, including many US allies — then no international institution is beyond reach.

This is not merely about the ICC. It is about the principle that certain forums exist outside the direct control of any single government. The World Trade Organization’s dispute panels faced similar pressure from Washington in earlier years, but survived because the cost of outright destruction was too high — the US still benefited from the system’s output in trade disputes it won. The ICC sits on a weaker foundation. The United States is not a party to the Rome Statute. It faces no legal obligation to cooperate. That distance makes aggressive action cheaper and more likely. But it also makes the consequence more corrosive: when the strongest advocate for a rules-based order signals that it considers the order’s institutions expendable, others will follow.

Second-Order Effects

The ripple effects will extend well beyond The Hague. European allies are already preparing contingency measures. France and the Netherlands have floated the idea of establishing alternative funding mechanisms for the ICC, ring-fenced from US financial systems. The European Parliament has discussed legislative provisions that would shield EU nationals and entities from extraterritorial US sanctions related to ICC cooperation. These are not yet policy — they are insurance policies against the worst outcome.

For the Global South, the message is unambiguous: international institutions are not neutral arbiters but negotiating tables where power decides the terms of participation. China and Russia have already begun framing the sanctions as evidence that the so-called rules-based order is simply American rule by other means. Their narratives will gain traction among governments that have long resented the selective application of international law.

Even within the US legal community, the proposal has drawn criticism from former Justice Department officials and international law scholars who argue that sanctions of this magnitude exceed statutory authority and undermine the very rule-of-law principles the United States claims to defend. Whether that internal dissent translates into constraints on the administration remains to be seen.

What Comes Next

The next few weeks will be revealing. If Trump proceeds with sweeping sanctions, European allies — particularly those in the EU who are committed to the ICC — will face a direct confrontation. Britain, France, and the Netherlands have all defended the court publicly. Whether they respond with counter-sanctions, diplomatic isolation of the US measure, or quiet acquiescence will signal how much the postwar order still holds together. Historians of the crisis will likely point to this moment as a benchmark.

For Japan, the calculation is narrower but no less consequential. The Takaichi-Trump meeting on September 22 will be the first test. How Tokyo frames its position — or fails to — will echo through its relationships with both Washington and the broader community of states that still believe international law matters. Japanese officials are expected to emphasize the principle of judicial independence while avoiding language that directly challenges the US position. That balancing act may satisfy neither side.

The court did not ask to be a battleground between great powers. But in targeting it, the Trump administration is choosing sides in a question that predates all of them: whether power answers to law, or law answers to power. The sanctions proposal suggests the answer the United States intends to give — and the cost that answer will exact from everyone who built the architecture this administration is now dismantling.