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In page Immigration to Europe:
"Many of these Polish immigrants to the UK have since returned to Poland, after the serious economic crisis in the UK[citation needed]. Nevertheless, free movement of EU nationals is now an important aspect of migration within the EU, since there are now 27 member states,[12] and has resulted in serious political tensions between Italy and Romania, since Italy has expressed the intention of restricting free movement of EU nationals (contrary to Treaty obligations and the clear jurisprudence of the European Court of Justice).[13][citation needed]
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