The United States is the biggest trading partner for the European Union and Britain, whose economies could be at risk from the president-elect’s policies.

Secretary of State Antony Blinken heads to Brussels Tuesday as President-elect Donald Trump’s possible moves on support for Ukraine, NATO and tariffs raise serious questions and concerns among European officials.

WASHINGTON (AP) — Secretary of State Antony Blinken is heading to Europe for urgent meetings on Ukraine with NATO and European Union officials following last week’s U.S. presidential election and the return of Donald Trump to the White House in January.