Countries establish Special Tribunal for crime of aggression against Ukraine
Rule ChangesTreaty-based court will target Russia's senior leadership from a base in The Hague
May 16th, 2026: Ukraine FM names defendants, calls for global expansionNew here? Follow stories to track developments over time. Create a free account to get updates when stories you care about change.
Overview
Updated May 20For the first time since Nuremberg, a tribunal exists to prosecute heads of state for the crime of aggression. Thirty-six countries and the European Union signed the founding agreement on May 15 in Chisinau, Moldova.
The court targets Russia's senior leadership and Belarusian President Lukashenko. On May 16, Ukraine's foreign minister listed the names: Putin, Shoigu, Gerasimov, Bortnikov, Medvedev, and Lukashenko, calling them all recipients of 'their ticket to The Hague.' Four EU members, including Hungary, did not sign.
Why it matters
If the tribunal indicts Putin, any of the 36 signatory countries would be legally bound to arrest him on entry.
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People Involved
Organizations Involved
Europe's main human rights organization, separate from the European Union, with 46 member states.
Permanent court that prosecutes individuals for genocide, war crimes, crimes against humanity, and the crime of aggression.
Treaty-based court created to prosecute Russia's senior political and military leadership for the crime of aggression against Ukraine.
Timeline
February 2022 May 2026
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Ukraine FM names defendants, calls for global expansion
Latest DiplomaticForeign Minister Sybiha named the primary targets — Putin, Shoigu, Gerasimov, Bortnikov, Medvedev, Patrushev, and Belarusian President Lukashenko — saying they had all received 'their ticket to The Hague.' Ukraine called on non-European states to join the coalition.
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36 countries and EU sign tribunal agreement
TreatyForeign ministers gather in Chisinau and sign the agreement formally establishing the Special Tribunal in The Hague.
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Council of Europe approves draft statute
LegalThe Committee of Ministers signs off on the tribunal's founding text, opening it for state signatures.
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ICC issues arrest warrant for Putin
LegalThe International Criminal Court charges Putin with unlawful deportation of Ukrainian children. The warrant does not cover the invasion itself.
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Core Group of states begins formal work
DiplomaticA group including Ukraine, EU, UK, and other allies begins meeting to design the tribunal's jurisdiction and structure.
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Council of Europe expels Russia
DiplomaticRussia becomes the first country ever expelled from the Council of Europe over the invasion.
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First proposals for a special aggression tribunal
ProposalUkrainian officials and a group of international legal scholars publish detailed proposals for an ad hoc tribunal to try Russian leaders.
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Russia launches full-scale invasion of Ukraine
Inciting eventRussian forces cross into Ukraine from the north, east, and south. Putin announces the invasion in a pre-dawn televised address.
Historical Context
3 moments from history that rhyme with this story — and how they unfolded.
Nuremberg Tribunal (1945-1946)
After Nazi Germany's defeat, the Allied powers established a tribunal in Nuremberg to try senior Nazi leaders. Twenty-four defendants faced charges including crimes against peace, the legal precursor to the modern crime of aggression.
Twelve defendants were sentenced to death; seven received prison terms; three were acquitted.
Nuremberg established the principle that planning and waging aggressive war could be prosecuted as an international crime, even by heads of state.
The Ukraine tribunal draws directly on Nuremberg's framework. It targets the same leadership-level crime that Nuremberg prosecuted for the first time.
International Criminal Tribunal for the former Yugoslavia (1993-2017)
The UN Security Council established an ad hoc tribunal in The Hague to prosecute serious crimes during the Balkan wars. It indicted 161 individuals, including sitting Serbian president Slobodan Milošević.
Milošević was extradited in 2001 and died in his cell in 2006 before a verdict. The tribunal eventually convicted 90 individuals.
ICTY proved a sitting head of state could be indicted by an international court. Its work fed directly into the International Criminal Court created in 2002.
Like the Ukraine tribunal, ICTY was created to fill an accountability gap. It sat in The Hague and tried leaders whose home country refused to cooperate.
Special Court for Sierra Leone (2002-2013)
A hybrid court created by treaty between the UN and Sierra Leone tried those most responsible for atrocities in the civil war. It indicted Liberian president Charles Taylor while he was still in office.
Taylor was convicted in 2012 of aiding rebels who committed atrocities. He received a 50-year sentence.
The court showed a sitting head of state could be removed from office and tried by an international body. Taylor was the first head of state convicted by an international court since Nuremberg.
Sierra Leone shows the model the Ukraine tribunal hopes to follow: a treaty-based court with international backing, willing to indict sitting leaders.
