KYIV, Dec 24 – The number one priority of Ukrainian diplomacy for 2021 is countering Russian aggression and strengthening Ukraine's security, Foreign Minister Dmytro Kuleba said.

"This topic permeates all our activities, because the security of the state is first of all. If there is no security of the state, then it becomes much more difficult to work with everything else," Kuleba said at an online briefing on Thursday.