Ukrainians who were forced to vote would not be punished Moscow hopes to annex the provinces of Kherson, Luhansk, Donetsk and Zaporizhzhia KYIV, Ukraine: Ukrainians who help Russian-backed referendums to annex large swathes of the country will face treason charges and at least five years in jail, Ukraine’s presidential adviser said, as voting in four regions entered its last day. “We have lists of names of people who have been involved in some way,” presidential adviser Mikhailo Podolyak said in an interview with Swiss newspaper Blick. “We are talking about hundreds of collaborators. They will be prosecuted for treason. They face prison sentences of at least five years.” Podolyak said Ukrainians who were forced to vote would not be punished. Ukrainians officials have reported ballot boxes being taken door to door and residents being coerced into voting in front of Russian-backed security. Moscow hopes to annex the provinces of Kherson, Luhansk, Donetsk and Zaporizhzhia, in the east and south, which make up about 15 percent of Ukraine. None of the provinces are fully under Moscow’s control and fighting has been under way along the entire front line, with Ukrainian forces reporting more advances since they routed Russian troops in a fifth province, Kharkiv, earlier this month. Russian President Vladimir Putin has issued a veiled threat to use nuclear weapons to protect Russian soil, which would include the four provinces if annexed. Voting on whether to join Russia began on Friday in the regions and is due to end on Tuesday, with the Russian parliament possibly approving the annexation within days. The British Ministry of Defense said on Tuesday that Putin is likely to announce the accession of the occupied regions of Ukraine to the Russian Federation during his address to parliament on Sept. 30. Kyiv and the West have dismissed the referendums as a sham and pledged not to recognize the results.