This blog post is part of a series of posts published by the Research In Public International Law Group.
Introduction
The recent US-Israeli attack against the sovereign nation of Iran – which included the deadly bombing of a primary school, killing more than 150 children and wounding over 100, as well as the killing of the Supreme Leader, Ayatollah Ali Khamenei, along with several family members – presents a textbook example for the war crimes and the crime of aggression. This blog post focuses primarily on the jurisdictional hurdles involved in prosecuting the crime of aggression. It demonstrates how the proposed amendments to the jurisdictional provisions for the crime of aggression in the Rome Statute, and a Ukraine-style special tribunal, could provide some potential pathways for navigating these hurdles. It first briefly outlines how the attack constitutes both a war crime and a crime of aggression, followed by an analysis of the jurisdictional obstacles for the crime of aggression and their navigation, before placing the crime of aggression in a historical context to make a case for hope.
The attack constituting crime of aggression and war crime
The attack constitutes a manifest violation of Article 2(4) of the UN Charter, which prohibits the use of force. Furthermore, there appears to be no reasonable claim to the exercise of self-defence under Article 51 of the Charter (Quénivet 2026). Consequently, the invasion of the sovereign state of Iran and the bombardment of its territory qualify as acts of aggression under Article 8 bis (1) and (2) of the Rome Statute of the International Criminal Court (ICC), rendering those in authority responsible for the crime of aggression. Specifically, the Head of State and Head of Government of the US and Israel – President Donald Trump and Benjamin Netanyahu – as individuals in positions to effectively exercise control over or direct military action, bear apparent responsibility under Article 8 bis (1).
Moreover, during this international armed conflict under Common Article 2 of the Geneva Conventions, the bombing of a primary school – a property being a civilian object protected under the Article 52 of Additional Protocol I of the Geneva Conventions – may constitute grave breaches of the Geneva Conventions of 12 August 1949, as per Article 8(2)(a) of the Rome Statute. Directing attacks at undefended schools and the killing of the civilian population and senior leadership may also constitute violations of the laws and customs applicable in an international armed conflict under Article 8(2)(b). These acts may amount to war crimes, particularly as they were undertaken as part of a coordinated US-Israeli plan or policy to topple the Iranian regime.

Pathways to accountability: navigating jurisdictional challenges for crime of aggression
The primary challenge is not whether these acts constitute specific crimes – as the law would suggest they do – but rather the difficulty of ensuring accountability within the framework of international criminal law. Under Article 15 bis and 15 ter of the Rome Statute, the ICC can only exercise jurisdiction over the crime of aggression committed by the national of a state if the state is a party to the Rome Statute, if the crime of aggression occurs on the territory of a state party or if the security council refers the crime of aggression to the prosecutor of the ICC.
Further, under Articles 15, 15 bis, and 16 of the Rome Statute, no investigation into the crime of aggression can proceed unless the UN Security Council makes a determination that an act of aggression has been committed by the state concerned. Alternatively, an investigation may proceed if the Pre-Trial Chamber of the ICC authorises it, provided the Security Council has not deferred the matter. Since the U.S., Israel, and Iran are non-parties, and the U.S. holds a permanent seat (and veto) on the Security Council (Article 27(3) UN Charter), a reference to the prosecution or non-deferral of investigation is unlikely, leaving the crime of aggression legally out of reach at the ICC.
However, the ongoing amendment review initiated by the Assembly of States Parties (ASP) of the ICC in July 2025 provides a potential solution to this jurisdictional hurdle, as the ASP is considering an amendment – proposed by Germany, Costa Rica, Slovenia, and several other states – to modify the conditions under which the Court may exercise jurisdiction over crimes of aggression. If implemented, the amendment would mean that if the state on whose territory the crime occurred, or the state whose national is accused of committing the crime, ratifies or accepts the amendment (provided it is already a State Party), then the ICC can exercise jurisdiction. Furthermore, if a state chooses to remain a non-State Party or not to ratify the amendment, the Court could still exercise jurisdiction if that state lodges an Article 12(3) declaration with the ICC Registrar accepting the Court’s jurisdiction over the crime of aggression.
This amendment would be highly relevant in holding Heads of State and other officials responsible for the US–Israeli attack on Iran. It would mean that Iran, even if it chooses to remain a non-State Party to the Rome Statute, could lodge an Article 12(3) declaration giving the ICC jurisdiction over crimes committed on its territory. Article 12(3) declarations can apply retrospectively, as seen in the case of Ukraine, which filed a declaration in April 2014 accepting jurisdiction for crimes committed between 21 November 2013 and 22 February 2014.
However, whether the principle of non-retroactivity under Article 24 would preclude the retrospective effect of the amended provision – thereby preventing Iran from reaching back to the recent attacks by the US and Israel – is debatable. One could argue that while the procedural provisions would be amended, the substantive provisions (Articles 8 bis, 15 bis, and 15 ter of the Rome Statute) criminalising acts of aggression have been effective since July 2018, making the nullum crimen sine lege (no punishment without law) argument less persuasive. Nevertheless, one must wait and see, as the next ASP session will be convened in 2029 to consider the proposed amendments.
Meanwhile, a Council of Europe–style Special Tribunal for the crime of aggression, similar to the one established for Ukraine, could be considered. The necessity of such a tribunal stems from the fact that, within the current ICC legal framework, jurisdiction over the crime of aggression is limited to States Parties to the Rome Statute – a hurdle that currently prevents the ICC from exercising jurisdiction over the US-Israeli attack on Iran. In the absence of an exact parallel to the Council of Europe in Asia, the organisations that most closely resemble it – specifically regarding the formation of a tribunal by negotiating a statute with Iran and using the Ukraine model as a blueprint – could be the Organization of Islamic Cooperation (OIC), which currently represents 57 states including Iran, or the Shanghai Cooperation Organisation (SCO). The SCO is the world’s largest regional organisation in terms of geographic area and population; it focuses on Eurasia and includes Russia, China, India, Iran and Pakistan, among others, as member states. Unlike the ICC, the Ukraine model would support trials in absentia. However, a downside of such a tribunal is that it may not be able to conduct the trial of a sitting Head of State, Head of Government, or other person in an official capacity unless they leave their position or their immunity is waived (Cosneanu 2025).
Accountability for international crimes: a challenging but hopeful case
Ultimately, bringing perpetrators of international crimes to justice will be a long and challenging battle, though at the ICC these crimes are not subject to limitation period per Article 29 of the Rome Statute, given that international criminal justice is not without political influence. One can understand the challenges the ICC may face in this regard, when they consider the fact that the US imposed sanctions on the ICC judges and prosecutors once the ICC issued arrest warrants for Benjamin Netanyahu and Yoav Gallant for the alleged war crimes and crimes against humanity in the situation in Palestine.
However, setbacks in prosecuting Heads of State and other senior government officials are not novel. The victors’ attempt to prosecute the Grand Vizier of the Ottoman Empire for the Armenian massacre never saw the daylight, as the Treaty of Sèvres negotiated in Paris was never ratified by any Turkish regime. The attempt to prosecute the German Emperor, Kaiser Wilhelm II, also could not materialise, as the ‘special tribunal’ sanctioned by the Treaty of Versailles was never actually established and as the Netherlands refused to extradite him (Schabas 2012). An even-handed prosecution for the atrocities committed in the Second World War – by way of bringing to justice those responsible from the Allied forces, such as the Russian leadership for the Katyn Massacre of Polish citizens or the US leadership for the Hiroshima and Nagasaki bombings or the UK-US leadership for the Dresden bombings – never materialised (Labuda 2024).. Even after all these setbacks, since we have precedents of successful prosecutions of Heads of State and senior officials, such as Japanese Prime Minister Hideki Tojo at the International Military Tribunal for the Far East (IMTFE), or Yugoslav President Slobodan Milošević and Rwandan Prime Minister (Interim) Jean Kambanda at the International Criminal Tribunals for the former Yugoslavia and Rwanda (ICTY and ICTR) or Liberian President Charles Taylor at the Special Court for Sierra Leone (SCSL) – there is always hope for justice to prevail in the long run.
Conclusion
Finally, to echo Sir Thomas More, the celebrated English lawyer and Lord Chancellor, a question must be asked of us all: if the Devil were to turn around on us – if we remain silent now and passively accept this flagrant breach of international norms and a culture of impunity – where would we hide when our turn comes?


