What case(s) asserted the legal principle that countries are liable for damage that their citizens cause in another country?

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The Trail Smelter case (United States v. Canada) is a landmark environmental law case where the Arbitral Tribunal decided that a country is liable for environmental damage caused in another country by pollution originating within its borders. This case established the principle that states could be held responsible for the transboundary harm caused by activities within their jurisdiction.

What Case(s) Asserted the Legal Principle That Countries Are Liable