The Kellogg-Briand Pact or Pact of Paris - officially the General Treaty for Renunciation of War as an Instrument of National Policy[1] - is a 1928 international agreement on peace in which signatory states promised not to use war to resolve "disputes or conflicts of whatever nature or of whatever origin they may be, which may arise among them".[2] The pact was signed by Germany, France, and the United States on 27 August 1928, and by most other states soon after. Sponsored by France and the U.S., the Pact is named after its authors, United States Secretary of State Frank B. Kellogg and French foreign minister Aristide Briand. The pact was concluded outside the League of Nations and remains in effect.[3]

Who could have imagined one month ago that the US Senate would be presented with a resolution by Senator Lindsey Graham calling for total support for the investigation by the international criminal court? And that it would be passing unanimously. That is a sea change, and it's a really significant sea change.

You can't adopt a resolution saying the ICC has jurisdiction over Russian nationals, while saying it has no jurisdiction over Americans.

Of course you can.

The trial of admiral Dönitz at Nuremburg is instructive:

His sentence on unrestricted submarine warfare was not assessed because of similar actions by the Allies. In particular, the British Admiralty, on 8 May 1940, had ordered all vessels in the Skagerrak sunk on sight, and Admiral Chester Nimitz, wartime commander-in-chief of the US Pacific Fleet, stated the US Navy had waged unrestricted submarine warfare in the Pacific from the day the US officially entered the war. Thus, Dönitz was not charged of waging unrestricted submarine warfare against unarmed neutral shipping by ordering all ships in designated areas in international waters to be sunk without warning.