Russia has unleashed its experimental, nuclear-capable 'Oreshnik' hypersonic missile in a massive weekend bombardment targeting the Kyiv region in weekend strikes. Ukrainian President Zelenskyy has confirmed the weapon struck Bila Tserkva, the largest city in Kyiv Oblast. It was part of a staggering wave of 600 drones and 90 missiles that overwhelmed local air defences, leaving at least four dead. NDTV World decodes Oreshnik missiles.