If Europe is left out of peace talks between Russia and Ukraine, a deal wouldn’t work, EU foreign policy chief Kaja Kallas told CNBC at the Munich Security Conference on Saturday.

Ukrainian President Volodymyr Zelenskyy is appealing to U.S. President Donald Trump’s history as a dealmaker, offering flattery as he seeks his leadership in negotiations that could end the ...

Trump has called for the U.S. to draw down defense spending and work with Russia and China toward joint nuclear disarmament.

Those two trends converge in what this report calls the “AI-nuclear nexus.” The authors write that the most critical risks of the AI-nuclear nexus can ...