How does the development of a supernationl level of government unite europe?

The development of a supernational level of government unite Europe by working on issues all Europeans share. Also the EU government strengthens. The unity among Europeans is an advantage for each country because they have the capacity to support and help each other without any hesitation.

Answergoogle earth; i believe this is the correct answer, plz check first;

Europe needs to build a trump-like wall that will spread across europe making it impossible for migrants to cross they need to spread pig guts all over this wall so the muslims will never consider crossing into europe..you might be asking "can't they just fly over with planes? " well yes they can so we will install thaad missile protections system to shoot down any aircraft that violates europe's air fourth would be to start a fourth reich in germany.. last but not least.. make europe great again!