The Schengen Area refers to a treaty that allows broad freedom of movement for European citizens between Schengen countries without the need for a visa. Use to discuss the politics of countries joining/leaving the Schengen Treaty

Schengen (so called for the Luxembourg town where it was signed) allows for the free movement of European citizens across borders without the need for a visa. It also created a Schengen Visa for visitors, meaning you only need one visa to travel most of Europe. It was largely engineered by the , but there are EU members who are not in Schengen and vice versa.

The EU has published this video that describes, the benefits of Schengen

https://www.youtube.com/watch?v=SBOZkq4vFvo