Some conservative members of Donald Trump's "Make America Great Again" movement have reacted angrily to the president's plans to sell weapons to Nato, arguing it is a betrayal of his promise to end US involvement in foreign wars.

Trump said the United States would put secondary tariffs on countries that do business with Russia if a peace deal is not reached in 50 days.

If an agreement to end the war with Ukraine is not reached in 50 days, Donald Trump said the US would bring in "severe tariffs" of "about 100%" on Russia.