When did Russian President Vladimir Putin formally announce that Moscow will annex four occupied regions of Ukraine?
Q1. When did Russian President Vladimir Putin formally announce that Moscow will annex four occupied regions of Ukraine?
Answer: on 30 September 2022
Explanation: Vladimir Putin formally announced the annexation of Donetsk, Luhansk, Zaporizhzhia, and Kherson oblasts on September 30, 2022, following staged referendums widely rejected by the international community.