Dmitry Medvedev, the former president and longtime sidekick to Vladimir Putin, has won a new five-year term as chairman of the ruling United Russia party.

Iranian state television has said the country's military fired a missile to test air defenses over Natanz, a city that houses nuclear sites.

Belarus's border authority has alleged, without producing evidence, that a Ukrainian military helicopter flew up to a kilometer into Belarusian territory, underscoring increasingly tense bilateral relations as Minsk and its ally Moscow test Western resolve in the region.

U.S. President Joe Biden and Russian President Vladimir Putin will hold a secure video call on December 7 to discuss Ukraine and other topics, the White House and Kremlin have confirmed.