Ukrainian President Volodymyr Zelensky vowed to defend Kharkiv as Russian forces launched an armoured ground attack in the area. On May 10, Russian forces launched an armoured ground attack near Kharkiv, Ukraine's second city, opening a new front in the ongoing conflict. Ukraine sent reinforcements as fighting raged in the border areas of the region, said the country’s Ministry of Defence. Watch the video to know more about the Russia-Ukraine war.