Representatives of the European Commission and the European Council will participate in the negotiations between Ukraine, Russia and the USA. Politico. The European Union will send Ursula von der Leyen's chief of staff, Bjorn Seibert, of the European Commission, and Anna-Maria Bora, chief foreign policy adviser to European Council President Antonio Costa, to Abu Dhabi, two EU officials said. National security advisers from France, Germany and Britain will attend the talks, a German official and two EU diplomats said. It is unclear whether European representatives will be present during the meetings. A German official told Politico that the format of the talks "will be determined as they progress." One EU official said Europeans would not be in the room.