Bulgaria to Receive Four Anti-Drone Systems by August 21

Bulgaria expects to receive two anti-drone systems on August 15 and is acquiring another two for delivery by August 21, Defense Minister Dimitar Stoyanov said on Friday. The accelerated acquisition follows an August 8 incident in which a Ukrainian drone entered Bulgarian airspace and exploded 100 meters inside the country's territory.

Stoyanov said personnel will require training before the first two systems become operational. He did not identify the systems, their manufacturers, acquisition value, technical configuration, or planned deployment locations.

The Bulgarian Ministry of Defense is working to acquire additional counter-unmanned aircraft system capabilities, according to Stoyanov. The procurement would give Bulgaria at least four newly acquired systems once the second pair arrives.

The move follows increased attention to unmanned aircraft activity around Bulgaria and the western Black Sea. On August 8, a Ukrainian drone crossed into Bulgarian airspace and exploded approximately 100 meters inside Bulgarian territory, according to Bulgarian authorities. Sofia was still awaiting detailed information from Ukraine on Friday about the circumstances surrounding the incident.

Stoyanov indicated that interference with the drone's Global Positioning System or a control-system failure could have contributed to its trajectory, while stressing that Bulgaria had not alleged a deliberate Ukrainian incursion. The case is under the jurisdiction of Bulgaria's Military Prosecution Office, and the Interior Ministry is also preparing an expert assessment.

Bulgarian naval forces have separately responded to three unmanned or missile-related objects. Stoyanov said two were reconnaissance drones without military payloads, while the third object was a missile engine that the Bulgarian Navy destroyed. He assessed that one reconnaissance drone found near Primorsko was probably operated by Russian forces before currents carried it into Bulgarian waters.

The acquisitions place Bulgaria within a broader NATO effort to strengthen defenses against unmanned aircraft. NATO and Ukraine launched a joint innovation initiative in July 2026 focused initially on countering first-person-view and Shahed-type drones, while eastern-flank states are increasingly deploying dedicated counter-drone capabilities rather than relying exclusively on conventional air-defense assets and combat aircraft.

Bulgaria is simultaneously modernizing its wider air-surveillance and air-defense infrastructure. Thales is nearing completion of negotiations with Sofia for Ground Master 400 Alpha long-range surveillance radars, which would replace aging Soviet-designed systems and improve integration with NATO air-surveillance networks.

The immediate operational impact of the four anti-drone systems will depend on their configuration and the completion of personnel training. The Bulgarian government has not yet disclosed whether the equipment will protect military installations, critical infrastructure, borders, or other designated sites.