Russia’s truce claims in Ukraine clash with continued fighting as sanctions, tech scrutiny, Cuba policy shifts, and a Georgia election probe widen the security landscape.

The swift advance of Moscow’s forces into the town of Huliaipole showcases a central challenge for Kyiv: how to defend 700 ...

Weeks before the start of the fifth year of its all-out war, Russia is having more success obliterating Ukraine’s energy ...

Ukraine waited for signs on Friday that Russia is abiding by a commitment that U.S. President Donald Trump said it made to temporarily halt attacks on Ukraine’s power grid, as ...

Russia’s war effort in Ukraine is grinding forward at a pace unseen in modern warfare, according to a new Western assessment ...