see more

VIENNA, AUSTRIA APRIL 18 : Anti-refugee far right Freedom Party of Austria (FPO) and Pro-refugee 'Platform for a humane asylum policy' group stage rival protests in Vienna, Austria on April 18, 2016. (Photo by Hasan Tosun/Anadolu Agency/Getty Images)

VIENNA, AUSTRIA  APRIL 18 : Anti-refugee far right Freedom Party of Austria (FPO) and Pro-refugee 'Platform for a humane asylum policy' group stage rival protests in Vienna, Austria on April 18, 2016. (Photo by Hasan Tosun/Anadolu Agency/Getty Images)