Judge O-Gon Kwon was a permanent judge at the International Criminal Tribunal for the former Yugoslavia from November 2001 to March 2016. He was also Vice President of the tribunal from 2008 to 2011. At the ICTY, he presided over the trial of former Bosnian Serb leader, Radovan Karadžić. He also sat on the trials of Slobodan Milošević, former President of the Republic of Serbia and the Federal Republic of Yugoslavia, and of Popovic and others, which dealt with the events of Srebrenica. Following his tenure at the ICTY, Judge Kwon was elected President of the Assembly of States Parties of the International Criminal Court in December 2017. He served in that capacity until February 2021. Prior to his international career, Judge Kwon served as a judge in the Republic of Korea for 22 years. He also served in various senior positions in the government of the Republic of Korea. He holds an LL.B degree from Seoul National University College of Law and of two LL.M degrees, from the Graduate School of Seoul National University and from Harvard Law School.