advantages and disadvantages of European Union (EU)

Some people suggest that the most advantage of the EU is the enormous huge of war reduction with a lot of the benefit to all the countries that is part of the European Union. And other advantage is A European currency that maintain stability and vapor trade. And Europe strength other member countries that is part of it to become stronger against the other economies.THE Europeans can move around freely seek for job, trade and education in countries that not their own .the disadvantages are countries cannot be independence by their decision as there part of EU .and lots of economies change as trade patterns. Also, free movement can cause lack of lab our and capital. It is hard to find one currency because of unstable economies. And last not least the Reduction of sovereignty as the power goes to the EU which is not always benefit to every country.