I have recently posted on this subject on the Australian SAS posts... and that may assist in clarification of whether the acts of the U.S. Sec Def (being kind towards any potential jury bias), and whether POTUS and the officers and men of the armed forces would be committing a war crime, or a criminal act, including premeditated murder.
Oddly, I think it is appropriate for the U.S.A. to have withdrawn from their ratified, signatory position with the Treaty of Rome, which followed the earlier Hague International Peace Conferences of 1899 and 1907. (they didn't work so well) The U.S. withdrew on 6 May 2002. Probably wise, but uncomfortable for future historians.
There is nothing wise about the comments that have been made by Kegsbreath and Kapt Kaos, they make a strong case to not travel outside of CONUS if they follow through with their rhetoric. They are in good company; Pol Pot, Vlad V. Putin, so that should be something for their supporters to celebrate. The fundamental problem with the rhetoric is that it makes a strong case that the Nurnberg and Tokyo trials were Victors Justice, in retribution, without the mantle of moral or even judicial justification.
The act is an issue, but the threat in certain cases is a war crime, I suspect we have crossed that lesser line some time back.
The human shields is heinous, but the attack against the infrastructure can be construed as a war crime itself, and in their infinite wisdom, F-Troop have laid out clearly their intent which removes the defences related to Mens Rea. That is incredibly ill advised I would think, but, is really just another day ending in Y.