Brussels, 18/06/2001 (Agence Europe) - On the initiative of the Swedish Presidency, the diplomatic representatives of ten EU member countries in Warsaw (Germany, Belgium, France, Greece, the Netherlands, Portugal, the United Kingdom, Sweden, Finland and Italy) began a two-day mission of inspection along the border between Poland and the Russian enclave of Kaliningrad on Monday. This enclave, situated between Poland and Lithuania, will be totally surrounded by EU territory once these two countries join. The aim of the mission is to enable the diplomats to get a picture of the efforts made by the Polish Government in view of protecting its external borders, which, following enlargement, will become EU external borders. Before being able to join the EU, Poland will have to demonstrate that it has fully adopted and implemented the acquis relating to home affairs and justice, including Schengen obligations. Accession negotiations on the "justice and home affairs" chapter will be stepped-up over the next six months (under the Belgian Presidency) when - according to the Road Map adopted in Nice - the EU will have to submit its definitive common negotiating position to the candidate countries on this delicate matter.