From Uneasy Ally to Open Adversary: The United States and the International Criminal Court

The relationship between the United States and the International Criminal Court has never been simple. For more than two decades, Washington has maintained a delicate, often contradictory stance toward the Hague-based tribunal—sometimes engaging, sometimes obstructing, but always keeping one foot out the door. That ambivalence, however, has now hardened into something far more aggressive. What was once a complicated diplomatic dance has evolved into open hostility, with profound implications for international justice, global governance, and America’s standing on the world stage.

A Complicated History Rooted in Sovereignty Concerns

To understand the current rupture, one must first appreciate the historical tensions that have defined U.S.-ICC relations since the court’s inception. When the Rome Statute was adopted in 1998, the United States was among only seven nations that voted against it—a decision driven by deep-seated concerns about sovereignty and the potential for politically motivated prosecutions of American servicemembers and officials. The Clinton administration signed the treaty at the last possible moment in December 2000, but President Bill Clinton made clear he would not recommend ratification, citing “significant flaws” in the court’s design.

Those flaws, as Washington saw them, centered on the absence of adequate checks on prosecutorial power and the court’s claimed jurisdiction over nationals of non-party states. The Bush administration went further, “unsigning” the treaty in 2002 and pursuing bilateral immunity agreements that sought to shield American citizens from ICC jurisdiction entirely. This period also produced the American Service-Members’ Protection Act, colloquially known as the “Hague Invasion Act,” which authorized military force to liberate any American detained by the court. The message was unmistakable: the United States viewed the ICC not as a partner in justice, but as a potential threat to its national interests and military freedom of action.

Yet even during these confrontational years, Washington never completely disengaged. The United States has consistently supported the ICC’s work in specific cases, particularly those involving atrocities in places like Darfur and Libya, where American diplomatic backing proved instrumental in securing UN Security Council referrals. This selective engagement reflected a pragmatic recognition that the court, despite its flaws, could serve American interests in holding genocidal leaders accountable without necessarily constraining U.S. operations. The Obama administration continued this bifurcated approach, offering rhetorical support for international justice while maintaining practical distance—a posture that allowed Washington to influence the court’s direction without formally submitting to its jurisdiction.

The Escalation Begins: From Sanctions to Open Confrontation

The inflection point came in 2018 when Prosecutor Fatou Bensouda signaled her intention to investigate potential war crimes committed by U.S. forces in Afghanistan. The Trump administration responded with characteristic bluntness, imposing sanctions on Bensouda and other ICC officials and threatening to revoke their U.S. visas. Then-Secretary of State Mike Pompeo framed the measures as necessary protection for American personnel, declaring that the United States would not tolerate “the hypocrisy” of an international body targeting Americans while ignoring abuses by other nations. The sanctions against Bensouda marked the first time Washington had directly punished ICC officials, transforming rhetorical opposition into tangible consequences.

The momentum toward open hostility has continued under the current administration, despite initial hopes that the Biden White House would adopt a more measured tone. In 2021, President Joe Biden lifted the sanctions imposed by his predecessor—a move hailed by human rights organizations as a positive step. But that goodwill dissipated rapidly when ICC judges authorized an investigation into alleged war crimes in the Palestinian territories in 2021, and again when the court issued arrest warrants for Israeli Prime Minister Benjamin Netanyahu and other officials in 2024. The U.S. response was swift and severe. Secretary of State Antony Blinken condemned the warrants as “misguided,” and congressional leaders from both parties immediately began drafting legislation to re-impose sanctions on the court and its personnel. Biden himself called the ICC action “outrageous,” signaling that even a Democratic administration—traditionally more sympathetic to multilateral institutions—would not tolerate prosecutions seen as targeting close American allies.

The Shifting Legal and Political Landscape

What explains this dramatic deterioration? The answer lies in a fundamental reorientation of how successive U.S. administrations have come to perceive the court’s role in advancing American foreign policy objectives—or undermining them. The ICC’s expanded focus beyond African conflicts has rankled Washington, which long viewed the court as useful primarily for addressing atrocities in weaker states while leaving major powers’ conduct untouched. That understanding has now collapsed. The court has demonstrated increasing willingness to investigate Western nations and their allies—notably in Afghanistan, Palestine, and Ukraine—thereby challenging the implicit hierarchy that had made American tolerance possible.

The geopolitical context has also shifted significantly. The ICC’s investigation into Russia’s invasion of Ukraine initially appeared to align with U.S. interests, earning the court praise from American officials who saw it as a tool to isolate Moscow. Yet this very alignment exposed the court’s potential to constrain other great powers, raising uncomfortable questions about where investigative scrutiny might next fall. For Washington, the ICC’s growing assertiveness against U.S. allies—particularly Israel—has transformed the court from a occasionally useful instrument into a hostile actor requiring active neutralization. The fact that the ICC has not yet pursued charges against Russian leadership for atrocities in Ukraine, despite overwhelming evidence, has further complicated the calculus, suggesting to some American policymakers that the court applies justice selectively in ways that may ultimately disadvantage U.S. interests.

The Perils of the Hostile Turn

The implications of America’s openly antagonistic posture are substantial and multifaceted. Most immediately, the United States risks isolating itself from the broader global consensus supporting international accountability mechanisms. While Washington has consistently maintained that it can pursue justice through its own domestic channels, many observers view this claim with skepticism, particularly given the military justice system’s poor record in prosecuting overseas misconduct. By categorically rejecting ICC jurisdiction over Americans and close allies, the United States creates an impression of exceptionalism that undermines its credibility when calling for accountability elsewhere—a double standard that authoritarian regimes are quick to exploit for their own purposes.

Moreover, the hostile turn threatens to weaken the ICC itself at a moment when its relevance is being tested. The court faces persistent challenges: inadequate resources, inconsistent state cooperation, a backlog of investigations, and questions about its effectiveness in actually delivering justice to victims. American opposition strengthens the hand of other ICC skeptics—including Russia, China, and various African and Middle Eastern states—who view the court as a vehicle for Western neo-imperialism. By treating the ICC as an adversary rather than an imperfect instrument capable of reform, Washington undermines the very institution that may increasingly be needed to address atrocity crimes in an era of resurgent authoritarianism and weakened great-power constraints.

Accountability, Alliance Politics, and the Road Ahead

The consequences extend well beyond the court’s corridors in The Hague. American hostility toward the ICC complicates alliance management and diplomatic relationships across multiple regions. European partners, who largely support the court and contributed significantly to its establishment, find themselves caught between solidarity with Washington and commitment to the rules-based international order. The friction over ICC matters has added strain to transatlantic relations already tested by trade disputes, divergent approaches to China, and disagreements over Ukraine strategy. Similarly, the perception that Washington prioritizes protection of Israeli officials over universal accountability has damaged U.S. credibility among Global South nations, who increasingly view American advocacy for international law as instrumental rather than principled.

Legal scholars increasingly debate whether the United States is crossing a dangerous threshold by actively seeking to obstruct ICC investigations through coercive measures. The sanctions regime against court officials raises serious questions about whether such actions violate the court’s founding treaty and customary international law, potentially exposing U.S. officials themselves to legal liability before the very institution they seek to undermine. This creates a paradoxical situation in which American efforts to shield allies from accountability may actually increase U.S. exposure to legal challenges, including before national courts in states parties that must implement ICC decisions.

Toward a Sustainable Modus Vivendi?

Looking forward, the trajectory of U.S.-ICC relations remains uncertain, but several potential paths emerge. One possibility is continued escalation, with Congress passing comprehensive sanctions legislation that criminalizes providing support to ICC investigations and prosecutions involving Americans or allied nationals. Such a step would represent a decisive break with any pretense of engagement and would almost certainly trigger retaliation from ICC member states, potentially fragmenting the court’s support base and diminishing its effectiveness.

An alternative approach would involve the United States recalibrating its stance toward conditional engagement—maintaining opposition to ICC jurisdiction over U.S. nationals while supporting specifically tailored court actions that align with American interests and values. This pragmatic posture would acknowledge the court’s legitimacy in appropriate circumstances without conceding universal jurisdiction claims. Such a middle path, however, appears increasingly difficult to sustain given intense domestic political polarization over international institutions generally and the visceral opposition to any perceived constraint on Israeli military operations in particular.

Ultimately, the transformation of U.S. policy from complicated to openly hostile represents more than a tactical shift; it reflects a deeper crisis in American grand strategy regarding the purpose of international law and the role of multilateral institutions in advancing national interests. The United States faces a fundamental choice: whether to continue treating the ICC as a tool to be deployed selectively when convenient, an adversary to be neutralized when inconvenient, or—most radically—a genuine partner in building a more just international order, with all the constraints on sovereignty that such partnership would entail. The decision will shape not only the fate of the International Criminal Court, but also the credibility of America’s commitment to the rule of law at a moment when that credibility is already under strenuous challenge from adversaries and allies alike.