Payam Akhavan, special adviser on genocide to the International Criminal Court, speaks during the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

Payam Akhavan, special adviser on genocide to the International Criminal Court, and Ukrainian Prosecutor General Andriy Kostin attend the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

Payam Akhavan, special adviser on genocide to the International Criminal Court, speaks during the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

Payam Akhavan, special adviser on genocide to the International Criminal Court, and Ukrainian Prosecutor General Andriy Kostin attend the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

Payam Akhavan, special adviser on genocide to the International Criminal Court, attends the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

Payam Akhavan, special adviser on genocide to the International Criminal Court, attends the United for Justice conference dedicated to Russian war crimes in Ukraine, amid Russia's attack on Ukraine, in the town of Bucha, outside of Kyiv, Bucha, Ukraine March 31, 2023. REUTERS/Anna Voitenko 

International Criminal Court (ICC) Prosecutor Karim Khan and Ukrainian Prosecutor General Andriy Kostin speak to journalists as they visit the site of a residential building damaged by a Russian missile strike in late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine, February 28, 2023. REUTERS/Valentyn Ogirenko 

International Criminal Court (ICC) Prosecutor Karim Khan and Ukrainian Prosecutor General Andriy Kostin speak to journalists as they visit the site of a residential building damaged by a Russian missile strike late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine February 28, 2023. REUTERS/Valentyn Ogirenko 

International Criminal Court (ICC) Prosecutor Karim Khan and Ukrainian Prosecutor General Andriy Kostin speak to journalists as they visit the site of a residential building damaged by a Russian missile strike late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine, February 28, 2023. REUTERS/Valentyn Ogirenko 

International Criminal Court (ICC) Prosecutor Karim Khan visits the site of a residential building damaged by a Russian missile strike late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine, February 28, 2023. REUTERS/Valentyn Ogirenko 

International Criminal Court (ICC) Prosecutor Karim Khan visits the site of a residential building damaged by a Russian missile strike late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine, February 28, 2023. REUTERS/Valentyn Ogirenko 

International Criminal Court (ICC) Prosecutor Karim Khan visits the site of a residential building damaged by a Russian missile strike late November, amid Russia's attack on Ukraine, in the town of Vyshhorod, outside Kyiv, Ukraine, February 28, 2023. REUTERS/Valentyn Ogirenko 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

ICC Deputy Prosecutor Mame Mandiaye Niang reacts as Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

ICC Deputy Prosecutor Mame Mandiaye Niang looks on as Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Advocate Charles Achaleke Taku reacts as Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Dominic Ongwen, a former Ugandan child soldier who became a commander of the rebel Lord's Resistance Army (LRA), appears before the International Criminal Court (ICC) in The Hague, Netherlands December 15, 2022. Sem van der Wal/Pool via REUTERS 

Chief Prosecutor of the International Criminal Court Karim A. A. Khan attends a G7 Justice Ministers meeting at the Foreign Office in Berlin, Germany, November 29, 2022. REUTERS/Christian Mang 

German Justice Minister Marco Buschmann, his counterparts from the G7 countries, and the EU Commissioner for Justice Didier Reynders, the Ukrainian Minister of Justice Denis Maljuska, the Ukrainian Prosecutor General Andriy Kostin and the Chief Prosecutor of the International Criminal Court Karim A. A. Khan pose for a family picture at the Foreign Office in Berlin, Germany, November 29, 2022. REUTERS/Christian Mang 

German Justice Minister Marco Buschmann, his counterparts from the G7 countries, and the EU Commissioner for Justice Didier Reynders, the Ukrainian Minister of Justice Denis Maljuska, the Ukrainian Prosecutor General Andriy Kostin and the Chief Prosecutor of the International Criminal Court Karim A. A. Khan pose for a family picture at the Foreign Office in Berlin, Germany, November 29, 2022. REUTERS/Christian Mang 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, gestures during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, gestures during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, gestures during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, gestures during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, salutes during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People meet to celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

A woman holds a portrait of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

People celebrate the arrival of Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, salutes during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, salutes during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

A man holds a portrait of Charles Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, during his return after being released by the International Criminal Court in Abidjan, Ivory Coast ,November 26, 2022. REUTERS/Luc Gnago 

Charles Ble Goude, former Youth Minister of former President Laurent Gbagbo and leader of the Young Patriots, gestures during his return after being released by the International Criminal Court in Abidjan, Ivory Coast, November 26, 2022. REUTERS/Luc Gnago 

Assistant Professor of (International) Criminal Law at UvA, Marieke de Hoon speaks to media after the Dutch court announced its ruling in the MH17 trial of three Russians and a Ukrainian in the Schiphol Judicial Complex, Badhoevedorp, Netherlands, November 17, 2022. REUTERS/Piroschka van de Wouw 

THE HAGUE - Prosecutors Rashid Salim Rashid (L) and Rupert Elderkin (R) in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

THE HAGUE - Defence lawyer Emmanuel Altit (R) of Felicien Kabuga in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

THE HAGUE - Defence lawyer Emmanuel Altit (C) of Felicien Kabuga in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

THE HAGUE - Defence lawyer Emmanuel Altit (C) of Felicien Kabuga in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

THE HAGUE - Defence lawyer Emmanuel Altit (C) of Felicien Kabuga in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

THE HAGUE - Defence lawyer Emmanuel Altit (L) of Felicien Kabuga speaks with prosecutor Rupert Elderkin (R) in court at the UN International Residual Mechanism for Criminal Tribunals (IRMCT) in The Hague. KOEN VAN WEEL/Pool via REUTERS 

Karim Khan, Prosecutor of the International Criminal Court speaks at the courthouse ahead of the trial of eleven men accused of responsibility for the 2009 massacre and mass rape of pro-democracy protesters by forces linked to a former military junta in Conakry, Guinea September 28, 2022. REUTERS/Souleymane Camara 

Karim Khan, Prosecutor of the International Criminal Court speaks at the ahead of the trial of eleven men accused of responsibility for the 2009 massacre and mass rape of pro-democracy protesters by forces linked to a former military junta in Conakry, Guinea September 28,2022. REUTERS/ Souleymane Camara 

Mahamat Said Abdel Kani attends the court room of the International Criminal Court in The Hague, Netherlands, Monday, Sept. 26, 2022. Peter Dejong/Pool via REUTERS