U.S. President Donald Trump on Thursday said he was not sure the United States should be spending anything on NATO, telling reporters the U.S. was protecting NATO members, but they were "not ...

NATO Secretary-General Mark Rutte said a Russian victory over Ukraine would undermine the dissuasive force of the world’s biggest military alliance.

NATO's Mark Rutte warns that a Russian win in Ukraine would greatly elevate the cost of restoring global military deterrence.