Completed the following sentence: The European Union went through several crises. The European debt crisis caused severe economic problems to several eurozone member states, most severely Greece.<unk> The European debt crisis caused severe economic problems to several eurozone member states, most severely Greece. <unk> <unk> <unk>
2015 migration crisis led to several millions people entering the EU illegally in a short period of time. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ As a result of a referendum, the United Kingdom became the first member state in the EU's history to initiate procedures for leaving the Union.<unk> As a result of a referendum, the United Kingdom became the first member state in the EU's history to initiate procedures for leaving the Union.