The main purpose of the European Union it to do what

Correct answer is to enable safe and free movement of people and good and thus to protect the common market.

Explanation:

The idea of EU started developing after WW2 as a way of compromise between France and Germany. As the agreement started spreading, the common market became one of the main necessities among the members of EU. Also EU counts almost 30 countries and is the strongest economical force in Europe.

answer; analytical,creative and practical;