European Commission Vice President Frans Timmermans attends a joint press conference with Polish Foreign Minister Jacek Czaputowicz (not seen in the picture) in Warsaw, Poland, on April 9, 2018. "The change in the Polish government has also led to a change in the climate of our relations," Timmermans said here on Monday following meeting with Jacek Czaputowicz. (Xinhua/Jaap Arriens)