People wave flags during a rally to celebrate accession of new territories to Russia in Luhansk, Luhansk People's Republic. On September 23-27, the Donetsk and Luhansk People's Republics (DPR and LPR), the Kherson and Zaporizhzhia regions held referendums on whether to become part of Russia. The vast majority of voters supported joining Russia. Russian President Vladimir Putin signed the agreements that formally reunite Zaporizhzhia and Kherson regions, as well as the Donetsk and Luhansk People's Republics (DPR and LPR) with Russia.