Prior to 1991, Astapenka started work at the
Ministry of Foreign Affairs as the Third Secretary of the
Byelorussian Soviet Socialist Republic. and then Representative of the Cabinet for International and European Cooperation. In October 2022, he was appointed as head of the
Mission for Democratic Belarus in Brussels. Aims of the Mission include hosting Belarusian
non-governmental organizations and representatives of the Belarusian diaspora and taking on the role of "Free Belarus". , the Mission aimed to obtain diplomatic status with Belgian authorities. Astapenka was a speaker at the October 2022
1st European Political Community Summit held in Prague. When asked about
Belarusian involvement in the 2022 Russian invasion of Ukraine in December 2022, Astapenka stated that direct Belarusian military involvement in attacking Ukraine would be resisted by Belarusian soldiers and citizens, and risked destabilising Lukashenko's hold on power. Astapenka predicted that if Russia lost its war in Ukraine, then Lukashenko's power would be greatly weakened. ==Legal case==