The fate of the two pilots who ejected from the downed plane is unclear. Turkey had objected last week that Russia was bombing Turkmen rebels in Syria.
The Metrojet jet was downed over Egypt's Sinai Peninsula on Oct. 31, an attack claimed by Islamic State. Russian officials say there is growing consensus with Western powers on fighting Islamist terrorism.
The Syrian president's visit to Moscow, his first known visit abroad since the civil war began, indicates confidence in how the conflict is developing now that Russia has entered the fray.
Russia’s intervention into Syria has been described as a “game changer.” The conflict has attracted a kaleidoscope of local, regional, and international players all vying to prevail. Here's a guide to who’s who.
Russia's military intervention in Syria has jolted NATO and provoked frustration in Washington. On Wednesday, Russia launched cruise missiles from warships in the Caspian Sea.
Russian jets have twice entered Turkish airspace, according to NATO, which has disputed Russia's account of an accidental incursion during action in Syria.