European leaders warned on Monday that U.S. President Donald Trump's threat to expand tariffs to the EU risked setting off a trade war that would cause economic harm on both sides of the Atlantic. European Union foreign policy chief Kaja Kallas said if the U.

BRUSSELS (Reuters) -European leaders warned on Monday that U.S. President Donald Trump's threat to expand tariffs to the EU risked igniting a trade war that would harm consumers on both sides of the Atlantic. European Union foreign policy chief Kaja Kallas said if the U.S. and Europe started a trade war "then the one laughing on the side is China".

EU leaders meeting in Brussels Monday warned there would be no winners in a trade war with the United States, insisting they would hit back if President Donald Trump imposes tariffs. French President Emmanuel Macron said the European Union must show its muscle if US President Donald Trump makes good on his threat to target the bloc with a volley of tariffs.