In the case of Republic of Mexico et al. v. Hoffman, 1944, the Supreme Court ruled in favor of the Republic of Mexico and against a U.S. citizen who had sued for damages from an accident that occurred on Mexican soil involving a Mexican government-owned railroad car. The plaintiff argued that because he was injured by property owned by a foreign government but located within U.S., he should be able to sue under American law. However, the court disagreed with this argument and held that sovereign immunity applied even when foreign governments were conducting commercial activities outside their territory but within U.S borders. The decision established important precedent regarding jurisdictional issues between nations and clarified how far-reaching principles like sovereign immunity could extend in international law cases involving state-owned enterprises or assets.

In the dissenting opinion for the case Republic of Mexico et al. v. Hoffman, Justice Robert H. Jackson argued that the majority's decision to deny Mexico's claim of sovereign immunity was a departure from established international law and practice, which could potentially harm U.S.'s relations with other nations. He contended that it is not within the jurisdiction of domestic courts to adjudicate on matters involving foreign governments' actions in their own territories unless there is express consent from those governments or clear authorization under international law. He also expressed concern about potential retaliation by other countries against American citizens and interests abroad as a result of this ruling.