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COUNTY FERMANAGH, UNITED KINGDOM-OCTOBER 1980. cross border road blocks between Northern Ireland and the Republic of Ireland put there by The British Army during The Troubles to stop IRA car bombs coming into Northern Ireland. (Photo by Alain Le Garsmeur/Getty Images)

COUNTY FERMANAGH, UNITED KINGDOM-OCTOBER 1980. cross border road blocks between Northern Ireland and the Republic of Ireland put there by The British Army during The Troubles to stop IRA car bombs coming into Northern Ireland. (Photo by Alain Le Garsmeur/Getty Images)