The second test and demonstration of the ROBORDER project (https://roborder.eu/) funded by Horizon 2020 Program of the European Commission took place from 21 to 25 June 2021 in Stara Zagora. Various operational scenarios for detection and identification of specific activities related to unregulated crossing of protected areas were successfully carried out. The event was attended by foreign partners and specialists from Tsvetan Lazarov Defence Institute.