Ushakov admitted that the possible presence of Europeans in Abu Dhabi would complicate the negotiations on Ukraine. The presence of European representatives in Abu Dhabi, even if they do not participate in the tripartite meeting on Ukraine, could complicate the negotiation process, since the Ukrainians and the Americans may consult with them and take their opinion into account, admitted Russian Assistant President Yuriy Ushakov. "If they buy plane tickets, fly to Abu Dhabi and hang out there somewhere, it means that occasionally those Ukrainians, and even those Americans, might report something, consult, maybe take into account some points of view.