Western leaders dismissed the Russian move as an attempt to deter Ukraine’s allies from providing further support to Kyiv, but the escalating tension weighed on stock markets after Ukraine used American-made ATACMS longer-range missiles for the first time to strike a target inside Russia.

Russian missile attack on Odesa kills 10 and wounds 44; Britain expected to clear Storm Shadows for strikes on Russian soil. What we know on day 1,000

President Vladimir Putin formally lowered the threshold for Russia’s use of nuclear weapons, following U.S. President Joe Biden’s decision to let Ukraine strike targets inside Russian territory with A

Russian President Vladimir Putin on Tuesday signed a revised nuclear doctrine declaring that a conventional attack on Russia by any nation that is supported by a nuclear power will be considered a joint attack on his country.