The Berlin blockade was a blockade by the Soviet Union (USSR) of the western part of Berlin, (controlled by the US, Britain, and France) The USSR wanted all of Berlin to themselves, and so blockaded the roads to stop the NATO nations from sending supplies to the war-torned Berlin. However, the US started the Berlin Airlift, transporting thousands, if not, millions of supplies to West Berlin over a period of times (and even Christmas Gifts :D)
I'm gonna assume you mean Berlin. The Berlin blockade was when Joseph Stalin Attempted to stop France, Great Britain, and the United States from traveling to their sectors of Berlin.
In order to be a member in the European Union or EU, countries are required to be a democracy. They all have democratic governments but have different styles of democracy.
