The Boeing/Airbus case is an excellent example. We got tired of complaining to the Europeans and getting nowhere, so we took the case to the WTO.
Their should be no WTO to complain to. Europe still subsidizes AB and we still complain. Problem now is we do not have permission to retaliate, because the WTO says no. That to me is an egregious assault on our sovereignty, as bad as the idiots on the SCOTUS citing international laws.