Hungary will hold a referendum on European Union plans to create a system of mandatory quotas for migrants, an initiative that Hungary's government has rejected, Prime Minister Viktor Orban said on Wednesday, according to Reuters. Orban has used harsh anti-migrant rhetoric since the migrant crisis escalated last year and gained notoriety for erecting a steel fence along Hungary's southern border to keep out migrants - a policy now adopted by other Balkan countries. He said the plebiscite, the first of its kind in Europe, would be a major test of European democracy. The EU declined official comment, saying it was trying to clarify what Orban was proposing.