PARIS, FRANCE – DECEMBER 08: A protester throws a tear gas canister back at the police during the ‘yellow vests’ demonstration near the Arc de Triomphe on December 8, 2018 in Paris France. ”Yellow Vests’ (‘Gilet Jaunes’ or ‘Vestes Jaunes’) is a protest movement without political affiliation which was inspired by opposition to a new fuel tax. After a month of protests, which have wrecked parts of Paris and other French cities, there are fears the movement has been infiltrated by ‘ultra-violent’ protesters. Today’s protest has involved at least 5,000 demonstrators gathering in the Parisian city centre with police having made over 200 arrests so far. (Photo by Chris McGrath/Getty Images)

RIGONCE, SLOVENIA – OCTOBER 26: Migrants are escorted by police through fields towards a holding camp in the village of Dobova on October 26, 2015 in Rigonce, Slovenia. Thousands of migrants marched across the border between Croatia into Slovenia as authorities intensify their efforts to attempt to cope with Europe’s largest migration of people since World War II. (Photo by Jeff J Mitchell/Getty Images)