Hungary's prime minister said he does not support moving forward on negotiations on Ukraine's future membership in the European Union, signaling again that his country could pose a major roadblock to Kyiv's accession ambitions. EU leaders are to decide in mid-December whether Ukraine should be formally invited to begin membership talks, with Hungary seen as a potential obstacle. Unanimity among member states is required to admit a new country, giving Hungary's prime minister, Viktor Orban, a powerful veto. The EU’s executive branch this week recommended that Ukraine should be permitted to open membership talks once it has addressed some shortfalls.