Ukraine’s drone strike deep inside Russian territory left Kremlin officials angry and alarmed over the sudden vulnerability of a nuclear-capable air fleet far from the battlefield, according to people close to senior officials in Moscow.

The Russian delegation at the Istanbul talks presented its demands for a ceasefire, which the Ukrainians will study over the next seven days

A Ukrainian security official told the Associated Press Sunday that Kyiv has destroyed more than 40 Russian planes in a drone attack deep in Russia’s territory.

Among Russia's key demands is the official recognition of Russia's annexation of Crimea, as well as the annexation of Ukraine's Kherson, Donetsk, Zaporizhzhia, and Luhansk oblasts, none of which Moscow controls in full.

Keith Kellogg, U.S. special envoy, exposes Western strategy in the Ukraine war, calling it a NATO proxy war against Russia. Kellogg echoed Kremlin concerns about Western alliances and escalatory risks.

Kyiv’s drones hit Putin’s bombers and cruise missile carriers deep inside Russian territory - Zelensky says major drone attack on Russian airfields 'will go in history books'

Ukraine war latest: Russia accuses Kyiv of 'terrorist attack' The Ukrainian operation - which used small drones smuggled into Russia, hidden in mobile sheds and launched off the back of trucks - also demonstrated how technology and imagination have ...