That's not really how it works. A judgment is kind of a universal thing. It is a right to the the value of the judgment and you can assert it in any number of w

That's not really how it works. A judgment is kind of a universal thing. It is a right to the the value of the judgment and you can assert it in any number of ways. If you have a judgment against a foreign company, and that company temporarily has some assets in a bank in the country that issued the judgment, you can get a court order to have them seized. You can also go to other countries and enforce that judgment. If I sue you in the UK and win, but I can't adequately enforce the judgment in the UK because all of your assets are in another country, I can generally go to that other country and ask a court there to enforce the judgment. One of the main things that court will look into is whether the court that issued the judgment was acting properly under international law in the first place. A country that issues a judgment beyond the scope of its jurisdiction under international law is violating international law. There's no international police to come get you, but you're not operating by the rules of the road and foreign countries will start to look at judgments originating in your country with suspicion. If you aggressively enforce illegally extraterritorial judgments, such as by seizing the assets of foreign actors that are just passing through your company, you might even get into tit-for-tats with other countries. Extraterritorial jurisdiction is not totally illegal, but there are limits and this would seem to be outside of those.