Vladimir Kara-Murza Jr., twice a survivor of poisoning attempts he blames on Kremlin, convicted by court following speech in Arizona denouncing Ukraine invasion

Russian opposition leader said to be suffering severe stomach pain, rapid weight loss; ambulance was called last week, but authorities refused to allow him to go to hospital

Gleb Karakulov, who was responsible for president's secure communications, says moral opposition to invasion of Ukraine and his fear of dying there drove him to speak out

Political writer Tal Schneider discusses what's holding up coalition talks and diplomatic correspondent Lazar Berman looks at the Kremlin's welcome of Netanyahu and a UN hubbub

Putin to lead ceremony in Kremlin that will formally incorporate Luhansk, Donetsk, Kherson and Zaporizhzhia areas into Russian territory, spokesperson says

Yevgeny Prigozhin says he formed organization in 2014 to send fighters to Ukraine's Donbas, hails the mercenaries accused of atrocities as 'heroes who defended the Syrian people'

Dmitry Peskov tells NBC News that Alexander Drueke and Andy Huynh are 'soldiers of fortune,' their cases still being probed

Addressing World Economic Forum via video link, Zelensky vows Ukraine will reclaim 'all its territories'; Russian lawmakers scrap age cap of 40 for first-time army volunteers

Hardliners in Russia urge Kremlin to conduct a mass mobilization and concentrate its resources, as Russian troops remain bogged down outside Ukrainian cities

In call with Finnish counterpart, Russian president says Nordic nation's abandonment of 'military neutrality' could harm ties between countries