The European Union has warned that its trade with the United States could be effectively wiped out if Washington makes good on its threat to slap a 30% tariff on goods imported from the bloc.

U.S. President Donald Trump on Tuesday announced a trade deal with Indonesia, the latest pact in a bid to cement better terms with trading partners and reduce a massive trade deficit, even as the European Union readied retaliatory measures should talks between Washington and its top trading partner fail.

The European Union could target Boeing and whiskey-maker Brown-Forman under its plans for retaliatory tariffs if the bloc can’t reach a trade deal with the U.S.