Negotiations between the US, Russia and Ukraine are to take place in Abu Dhabi on November 4 - Polish Prime Minister Donald Tusk stated this while speaking before a government meeting in Warsaw, The Guardian reports. "It would be useful for European politicians to establish working relationships in connection with the planned ceasefire negotiations that may take place in Abu Dhabi. There is no need to have any illusions: it is absolutely clear what the Russian side is up to. However, I will continue to maintain constant contact with everyone who has good will and belief that reaching an agreement - or at least before the beginning of winter - is possible," he said.