US National Security Advisor Jake Sullivan in a phone call with the Chief Advisor to the President of Turkey Ibrahim Kalin said that Turkey’s acquisition of the Russian S-400 air defense system undermines NATO effectiveness, the White House said.

A Moscow court has ordered Aleksei Navalny to serve 2 years and 8 months in prison after finding him guilty of violating his parole in a reversal of a suspended sentence the Russian opposition politician says was driven by President Vladimir Putin’s “fear and hatred.”

Iran’s representative to the Vienna-based organizations says the country has installed new cascades of advanced centrifuges at two nuclear sites in Natanz and Fordow to increase enrichment capacity.