Just a reminder to Americans:
https://www.wikiwand.com/en/United_States_and_the_International_Criminal_Court
The United States is not a State Party to the Rome Statute of the International Criminal Court (Rome Statute), which founded the International Criminal Court (ICC) in 2002 as a permanent international criminal court to bring to justice the perpetrators of the worst crimes known to humankind – war crimes, crimes against humanity, and genocide, when national courts are unable or unwilling to do so.