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Right-wing activists shout slogans as they gather in front of Hauptbahnhof main railway station before marching through the city center on November 5, 2016 in Berlin, Germany. 300-400 demonstrators, including neo-Nazis, chanted 'Merkel muss weg!' ('Merkel must go!') and marched towards Alexanderplatz. Right-wing sentiment across Germany has found cohesion with the Alternative fuer Deutschland (Alternative for Germany) political party, a new, populist party that has won seats in state parliaments and has a strong chance of gaining seats in the Bundestag in federal elections scheduled for 2017. (Photo by Markus Heine/NurPhoto via Getty Images)

Right-wing activists shout slogans as they gather in front of Hauptbahnhof main railway station before marching through the city center on November 5, 2016 in Berlin, Germany. 300-400 demonstrators, including neo-Nazis, chanted 'Merkel muss weg!' ('Merkel must go!') and marched towards Alexanderplatz. Right-wing sentiment across Germany has found cohesion with the Alternative fuer Deutschland (Alternative for Germany) political party, a new, populist party that has won seats in state parliaments and has a strong chance of gaining seats in the Bundestag in federal elections scheduled for 2017.  (Photo by Markus Heine/NurPhoto via Getty Images)

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BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

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BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists cry slogans as they gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists cry slogans as they gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

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BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists cry slogans as they gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

BERLIN, GERMANY - MAY 07: Neo-Nazis and other right-wing activists cry slogans as they gather in front of Hauptbahnhof railway station under the banner "We for Berlin - We for Germany" to protest against German Chancellor Angela Merkel's refugee policy on May 7, 2016 in Berlin, Germany. Germany's far-right is seeking to profit from the unease among a significant portion of Germany's population over the influx of over one million migrants and refugees in the past year. (Photo by Carsten Koall/Getty Images)

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OSTRITZ, GERMANY - APRIL 21: Participants wearing t-shirts that read: "Noricum" arrive for a neo-Nazi music fest on April 21, 2018 in Ostritz, Germany. By earky after noon approximately 500 neo-Nazis from across central Europe had arrived for the "Shield and Sword" three-day music fest that coincides with Adolf Hitler's birthday. The organizer of the event, Thorsten Heise, leads the far-right NPD political party in the neighboring state of Thuringia. Police are responding by deploying over 1,000 officers from across Germany in the biggest police commitment in eastern Saxony in over a decade. (Photo by Sean Gallup/Getty Images)

OSTRITZ, GERMANY - APRIL 21:  Participants wearing t-shirts that read: "Noricum" arrive for a neo-Nazi music fest on April 21, 2018 in Ostritz, Germany. By earky after noon approximately 500 neo-Nazis from across central Europe had arrived for the "Shield and Sword" three-day music fest that coincides with Adolf Hitler's birthday. The organizer of the event, Thorsten Heise, leads the far-right NPD political party in the neighboring state of Thuringia. Police are responding by deploying over 1,000 officers from across Germany in the biggest police commitment in eastern Saxony in over a decade.  (Photo by Sean Gallup/Getty Images)