A Ukrainian warplane has for the first time fired a weapon that struck a target inside Russia, a Ukrainian military source has told Sky News. The source said a "Russian command node" was hit on Sunday in the area of Belgorod, western Russia. Belgorod is close to the border with northeastern Ukraine. -snip- Speaking on condition of anonymity, the military source told Sky News: "A Ukrainian Air Force (UAF) mission has struck a Russian command node in Belgorod. "Whilst damage assessment is still occurring, it is confirmed as a direct hit. This is the first UAF air-delivered munition delivered against...