The incoming president promised “tariffs all the way” unless Europe bought more U.S. oil and gas. European officials have no clear strategy for avoiding a trade war.

Donald Trump has said he will impose tariffs on the European Union if the bloc does not make up its "tremendous" trade deficit with the United States.

President-elect Donald Trump doubled down on his tariff threats Thursday night, pledging to raise tariffs on European Union nations unless they increase their purchases of American oil and gas to narrow the trade gap with the United States.