Antigua and Barbuda
The US has ignored WTO rules before. One of my favorites is when the US forced credit card companies to stop money flowing from US gamblers to online casinos in Antigua and Barbuda, which violated a free trade agreement between the two countries. Antigua and Barbuda complained to the WTO, which ruled in their favor. When the US did not comply, Antigua and Barbuda got a free pass to retaliate by ignoring US copyright. See https://www.wto.org/english/tratop_e/dispu_e/cases_e/ds285_e.htm
Biting the hand that feeds IT
