They have already signed an association agreement with the European Union and are both part of the Central European Free Trade Area , which also comprises Hungary , Slovakia and the Czech Republic .
<response> They have already signed an association agreement with the <organization>European Union</organization> and are both part of the <organization>Central European Free Trade Area</organization> , which also comprises <location>Hungary</location> , <location>Slovakia</location> and the <location>Czech Republic</location> . </response>