President Vladimir Putin has approved Russia's updated nuclear doctrine to share the country's nuclear deterrence with its allies—mirroring NATO 's "attack on one member is an attack on all" doctrine, as President Zelensky of Ukraine marks 1,000 days since Russia invaded his country.

A Russian lawmaker calls President Biden's decision to let Ukraine fire U.S. missiles deep into Russia a "very big step toward the beginning" of a third world war.