Why Ukrainian officials are confident they can defeat Russia

Описание: Ukrainian officials say 30% of their energy infrastructure was destroyed by Russian drone and missile attacks, which shows that Putin's army has not let up although they lack ammunition and supplies. Despite Russian recent drone and missile attacks, a senior Ukrainian official believes “Russia’s loss is inevitable” by next summer. CNN’s Fred Pleitgen reports. #erinburnettoutfront #FredPleitgen #CNN