A quiet night in Belgium turned tense when several large flying objects appeared over the Kleine Brogel Air Base — a top-security Belgian military site believed to host U.S. tactical nuclear weapons. Witnesses described the objects as “large and fast,” hovering over the restricted airspace before vanishing into the dark.

Strange Night Skies Over Kleine Brogel

Officials later confirmed that they had spotted drones again flying over the Belgium base, marking the second consecutive night of mysterious activity. The airbase in Peer, Belgium, houses B61 nuclear bombs and F-16 fighter jets as part of NATO’s nuclear defense network.

Authorities immediately launched an emergency response. A helicopter and several police vehicles chased the objects across several kilometers but eventually lost contact. The sighting raised serious security concerns because the Belgium base enforces a strict no-fly zone due to its nuclear stockpile.

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This isn’t the first time Belgium’s Kleine Brogel has faced such an incident. Over the weekend, observers detected similar unidentified aerial objects in the same area, leading experts to believe that someone—or something—may be deliberately testing the base’s defenses.

Belgium on Alert as Drone Intrusions Rise

Belgium’s defense officials called the event a “clear attack” on the airbase, emphasizing that it wasn’t just a casual flyover. These drone incursions reflect a wider pattern that officials have observed across Belgium and other European countries in recent months. Observers have reported drones flying near other Belgian military sites, including Elsenborn on the border with Germany and Marche-en-Famenne in the country’s southeast.

Security teams say the drones involved in the Kleine Brogel case were unusually large and flew at high altitudes, making them difficult to intercept or jam. Counter-drone jamming equipment deployed at the base reportedly had no effect, deepening concerns about how advanced these flying machines might be.

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The repeated incidents have triggered meetings between local and national security agencies in Belgium to discuss enhanced surveillance and drone interception measures. For now, no one has claimed responsibility, leaving investigators puzzled about whether the perpetrators are foreign spies, tech-savvy civilians, or unknown entities.

Experts say the airbase plays a critical role in NATO’s deterrence strategy. Experts believe the base holds around 10 to 15 B61 tactical nuclear bombs, which Belgium’s nuclear-capable aircraft could deploy. Some international analysts even estimate that the base may store up to 44 nuclear weapons. Because of this, authorities treat any unauthorized drone activity over Kleine Brogel as a serious threat to Belgium’s and Europe’s security.

The timing of these incidents is also notable. Just a few weeks earlier, the base participated in NATO’s annual nuclear exercise, “Steadfast Noon,” which involves practicing the handling and coordination of nuclear missions among allied nations. That connection has made the drone sightings even more alarming for Belgian military observers.

Rising European and Belgian Concern Over Airspace Intrusions

Across Europe and Belgium, officials are increasingly alarmed by a surge in drone activity near sensitive sites. In recent months, military bases, nuclear plants, and border zones have reported multiple unauthorized flights with unknown origins.

To counter this, NATO and the European Union are working on new defense measures, including the “Drone Wall,” a multi-layered system using radar, interceptor drones, and jamming tools to block intruders. NATO also launched the Eastern Sentry program after nearly 20 drones entered Polish airspace in September.

Belgium’s recent drone sightings appear linked to this wider security challenge. The Kleine Brogel incident has become a key example of rising threats to restricted military zones. Some experts suspect foreign surveillance, while others believe private operators may be involved.

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Authorities remain silent on the investigation, though radar data and footage are under review. The airbase remains on high alert, and officials warn that flying drones over military areas in Belgium is illegal and punishable.

The mysterious appearance of large flying objects over Belgium’s Kleine Brogel Air Base has once again turned national attention to the skies—now filled with both curiosity and concern.