An operation, called `High Impact`, takes place in Bulgaria from October 3 to October 7, the Interior Ministry announced. The operation checks the protection level of the future borders of the European Union. The operation, initiated by the Belgian presidency, is to take place at one and the same time in ten EU applicant countries. The purpose of `High Impact` is to set up cooperation between EU applicants, Europol and EU members. It will improve international cooperation in the fight against illegal immigration, smuggling and human trafficking.