Exactly. The dominant global superpower has no interest in international tribunals, since it has the power to enforce its will directly. They are above the law

Exactly. The dominant global superpower has no interest in international tribunals, since it has the power to enforce its will directly. They are above the law because they don't need the law as leverage against anybody else. Joining the ICC has no upside for this country since it simply enforces its will upon the world directly. Why would the empire limit its own ability to commit war crimes for nothing in return? The US government can label any action it disagrees with as terrorism and act unilaterally.