ISIS-K, the group linked to Moscow's terror attack, explained
ISIS claims responsibility for Moscow concert venue attack as part of ongoing threat by ISIS-K.
Russia
Ukraine war updates: Putin says NATO won't be attacked but F-16s will; Kyiv claims Russia knew terror attack was coming
Pictures show aftermath of Russian airstrike in Ukraine's Zaporizhzhia region.
Russian veto brings end to UN panel monitoring enforcement of North Korea nuclear sanctions
Russia vetoes U.N. resolution on North Korea sanctions monitoring amid concerns over weapons trade.
Ukraine says a third of Russian warships in the Black Sea have been destroyed or disabled
Ukraine sinks or disables a third of Russian warships in Black Sea over two years of war.
NATO must create more "strategic difficulties" for Russia - Swedish foreign minister
Swedish Foreign Minister calls for strategic challenges to curb Russia's aggression against Ukraine.
The Return of the Tactical Crisis - Modern War Institute
The modern warfare tactics and challenges in the conflict between Russia and Ukraine.