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Czech Republic Prime Minister Bohuslav Sobotka, Hungary Prime Minister Viktor Orban, Poland Prime Minister Beata Szydlo and Slovakia Prime Minister Robert Fico during the Visegrad Group meeting in Warsaw, Poland on 2 March 2017 (Photo by Mateusz Wlodarczyk/NurPhoto via Getty Images)

Czech Republic Prime Minister Bohuslav Sobotka, Hungary Prime Minister Viktor Orban,   Poland Prime Minister Beata Szydlo and Slovakia Prime Minister Robert Fico during the Visegrad Group meeting in Warsaw, Poland on 2 March 2017 (Photo by Mateusz Wlodarczyk/NurPhoto via Getty Images)