“We should understand that the threat of a new and another offensive will remain until we defeat Russia,” Yuriy Sak, a senior defense ministry official, told NBC News in an interview Thursday. A spring offensive has long been predicted by Western officials and analysts, with the Kremlin eager to seize the initiative after a grinding winter that was preceded by months of battlefield setbacks and domestic criticism. Vilan told NBC News he was worried about a new Russian offensive, but not in Kyiv