Russian army disaster as Ukraine destroys North Korean 'wonder weapon' - Russian forces entrap Ukrainian battlegroup near Dvurechnaya in Kharkov Region - Russian forces containing Ukrainian troops near Volchansk in Kharkov Region - Ukrainian troops double enveloped near Novaya Kruglyakovka in Kharkov Region - Russian troops break through Ukrainian defenses near Oskol Reservoir in Kharkov Region - Russian troops gradually eliminate Ukrainian forces in Kharkov frontline area -- official - Russians wipe out three Ukrainian strongholds, over 20 Azov fighters in advance on Kharkov - Russian troops liberate five communities in Donbass region, Kharkov area over week - Russian troops storm into Kupyansk outskirts in Kharkov Region -- military expert - Russian troops push forward in Kharkov Region post-liberation of Kolesnikovka -- official