Human rights groups say at least 12,000 people have been killed since Duterte took office in 2016.
The court brings those who commit the worst atrocities to justice when their own countries will not.
The Trump administration had threatened to sanction the International Criminal Court if it investigates war crimes accusations against the U.S.
John Bolton will warn Monday that the U.S. "will use any means necessary" to keep Americans from facing trial in what the administration considers an "illegitimate court."
African 'domino effect' is symptomatic of tensions within the international justice system.
South Africa intends to withdraw from the ICC, but doing so would put it in bad company.
Ahmad al-Faqi al-Mahdi led the destruction of nine historic shrines and a 15th-century mosque.
Ahmad al-Faqi al-Mahdi is the first person to enter a guilty plea at the ICC.
The International Criminal Court gives Jean-Pierre Bemba 18 years for 2002-03 actions in Central African Republic.
The human rights lawyer will represent Yazidi victims of ISIS at the International Criminal Court.
Sudanese President Omar Al-Bashir, wanted by the ICC on genocide charges, was permitted to attend Museveni's inauguration.
The ICC has launched a preliminary examination of the violence that has killed over 400 people.
At least 300 people died in clashes between the Nigerian Army and the country's main Shiite movement.
Cultural heritage destruction, like the Sufi mausoleums of Timbuktu, robs peoples of their identity.
Human rights lawyers allege that the Nigerian president has committed crimes against humanity against pro-Biafran activists.
The former president is accused of crimes against humanity during violence after the 2010 election.
Prosecutor Fatou Bensouda intends to investigate possible crimes committed during the five-day Russia-Georgia War in 2008.
Al-Bashir's arrest would give the Obama administration the chance to reject impunity for crimes of genocide.
The complaints relate to Israel's conduct during the 2014 Gaza war and settlement construction.