Nit: Kissinger was actually tried as a war criminal in Spain under the principal of universal jurisdiction. Assuming he did not visit Spain he was immune to actual punishment, of course, but "winning" did not make him immune to being tried under that legal principal.

That’s cool. I think I’ll try Tony Blair as a war criminal tomorrow in my bedroom. It’ll have the same practical effect.

That's how sovereignty works. You can enforce laws in territory you control.