2022 annexation referendums in Russian-occupied Ukraine
In late September 2022, in the context of the Russian invasion of Ukraine, Russian-installed officials in Ukraine staged so-called referendums on the annexation of occupied territories of Ukraine by Russia. They were widely described as sham referendums by commentators and denounced by various countries.
Source: Wikipedia — 2022 annexation referendums in Russian-occupied Ukraine (CC BY-SA 4.0)