Ukraine U.S. rejected Russian demands for legal guarantees prohibiting NATO expansion, while tensions over Russian military build-up continued ahead of planned military exercises in Feb. After Moscow 15 Dec proposed to U.S. draft agreement on security guarantees that included provision not to expand NATO eastward, U.S. 26 Jan provided written …

The Kremlin is ramping up a disinformation offensive aimed at demoralizing Ukraine and Western powers, using Russian state-owned broadcasters and trolls on social media platforms to portray the West as the aggressor and the government in Kyiv as a puppet of NATO, say Western officials and information war experts. Scare …

U.S. intelligence agencies may have ruled out the idea that a rash of mysterious illnesses plaguing American diplomats and other officials is part of a sustained campaign by one of Washington’s adversaries, but they now say that in a small number of cases the only likely explanation is the use …