The United States and Russia quarrelled in public on Wednesday over the intensifying Ukraine war after U.S. President Donald Trump warned that President Vladimir Putin was "playing with fire" and Moscow massed 50,

WASHINGTON (AP) — Russia and Ukraine will “immediately” begin ceasefire negotiations, President Donald Trump said Monday after separate calls with the leaders of both countries meant to spur progress toward ending the three-year war. The conversations did not appear to yield a major breakthrough.