We also need an internationally coordinated strategy for prosecuting war criminals at the top and further down the chain of command – individual countries pressing charges, as Italy and France have done. Although the United States is not a signatory to the statute that established the International Criminal Court, violations of Common Article 3 of the Geneva Conventions are war crimes for which anyone – potentially even the US president – may be tried in any of the other 193 countries that are parties to the conventions.