Denmark announced that starting July 5, no more open borders. They blame drug trafficking and illegal immigrants.
Since the U.S. led invasion of Afghanistan drug trafficking has skyrocketed across Central Asia and into Europe. Many of the drugs come from U.S. occupied Afghanistan.
The NATO attacks on Libya have greatly increased what European governments are calling illegal immigration (most of whom are actually war refugees, no thanks to the European/U.S./NATO war on Libya).
Denmark is not the first EU member to close its borders. France and Italy closed their borders with each other, for the same reasons as Denmark. In the case of France and Italy, French officials discovered that Italy was giving refugees (I mean illegal immigrants), mainly from Tunis and Libya, EU visas then putting them on trains bound for France.
Other EU members are complaining about the violation of the European Union’s “open borders” policy, but Denmark claims their border closure will not affect commerce.