>>> I am fairly certain that whatever "laws" the United Nations passes, I as a citizen of the United States am not subject to them. I am subject to the laws of the United States, however.
>>
>>Your not familiar with the International Criminal Court and similar courts?
>
>No, not really. Can you tell me how I as a citizen of the United States, or a citizen of Canada, is subject to those laws over the laws of the United States or Canada?

Sorry, you are incorrect. Regardless of a nation's willingness to particpate in the war crimes court, its citizen can still be tried.

"Note, however, that a citizen of one of the 'objector nations' could still find himself before the Court if he were to travel to a country which is a signatory to the treaty, regardless of the fact that their country of origin is not a signatory."
http://en.wikipedia.org/wiki/War_crime#International_Criminal_Court