FILE- German policemen stand guard, as thousands of left wing activists were marching through the streets of Hamburg protesting the OSZE (OSCE) summit held in the city, on December 8, 2016. Large police forces will be mobilized to the city again in order to counter planned mass demonstrations against the G20 summit that will take place in early July 2017. Reports in local German media indicate gathering of anti globalization affiliates from all across Europe in the city.(Photo by Omer Messinger/NurPhoto via Getty Images)
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