Key Challenges Related to Possible Holding of an All-Ukrainian Referendum on Changes to Ukraine's Territory
At the end of December 2025, against the backdrop of negotiations with the United States regarding a 20-point peace plan to end the Russian-Ukrainian war, the President of Ukraine made a number of statements concerning the possibility of holding a referendum on a peace agreement with Russia and the territorial issues included in such an agreement. The Constitution of Ukraine allows for changes to the territory of Ukraine, provided that such changes are approved by a nationwide referendum. At the same time, the Constitutional Court of Ukraine is experiencing an institutional crisis, which calls into question its ability to deliver decisions within the time limits prescribed by law. In addition, any change to the territory of Ukraine may be confirmed by a referendum only through the approval, at such a referendum, of a law on the ratification of an international agreement providing for such changes, adopted by parliament and signed by the President. Civil Network OPORA has examined the main challenges related to the preparation and conduct of such a referendum, as well as the establishment of its results.