European leaders trying to make sense of a tough new line from Washington on issues including democracy and Ukraine's future were set to express their reactions on Saturday, as the Trump administration continues to upend trans-Atlantic conventions that have been in place since after World War II. German Chancellor Olaf Scholz and Ukrainian President Volodymyr Zelenskyy were to speak on the second day of the Munich Security Conference, a day after U.S. Vice President JD Vance all but scolded European allies over democracy and raised questions about the U.S. commitment to help Ukraine's defense against Russian forces. U.S. President Donald Trump held a phone call with Russian President Vladimir Putin this week in which he said the two leaders would likely meet soon to negotiate a peace deal.