Where is the International Criminal Court on Assassination?

Oliver North makes the claim here, that “The tape of a former president arrogantly proclaiming on international television that he personally authorized the assassination of a foreign foe may be great stuff for the screenplay of "Rambo V," but U.S. and international law specifically forbid it.”

I was personally aware of the first two of the executive orders mentioned because of my military career that ended right after the second of them and Stansfeld Turner’s appointment to be DCI. However, I am not certain of which “international law” Oliver  North speaks. But, if we assume that assassination is against “international law”, shouldn’t all those people that have been braying that we should put our military under the jurisdiction of that august body be sending links to the videos of that interview to the Prosecutor’s Office of the International Criminal Court?