“Third, war crimes which are grave breaches of the Geneva conventions in the context of armed conflict and include, for instance, the use of child soldiers; the killing or torture of persons such as civilians or prisoners of war; intentionally directing attacks against hospitals, historic monuments, or buildings dedicated to religion, education, art, science or charitable purposes.”
Bombing civilians and lying about it is probably a good place to start.
That’s a good point re: the drone attack.
Various admin officials could be charged with that one...