On Sunday, August 31, 2025, a routine diplomatic flight carrying European Commission President Ursula von der Leyen became the latest—and most high-profile—victim of suspected Russian GPS jamming, throwing a glaring spotlight on a growing threat to European security. As the plane traversed Bulgarian airspace, its navigation system abruptly lost satellite signal, forcing pilots to revert to paper maps to ensure a safe landing. The incident, though resolved without injury, has sent shockwaves through the corridors of power in Brussels, NATO headquarters, and across the continent.
According to the Associated Press, Bulgarian authorities quickly pointed the finger at Russia, citing the episode as yet another example of Moscow’s increasingly brazen campaign of hybrid warfare. While neither the Kremlin nor von der Leyen herself has commented directly, European officials wasted no time in raising the alarm. "We have received information from Bulgarian authorities that they suspect this blatant interference was carried out by Russia. We are well aware that threats and intimidation are a regular component of Russia’s hostile actions," European Commission Deputy Chief Spokesperson Arianna Podestà said in a statement to TIME on Monday. She added that the event would "further reinforce" the Commission’s commitment to strengthening European defense and supporting Ukraine.
The timing could hardly have been more symbolic. Von der Leyen, a staunch ally of Ukrainian President Volodymyr Zelensky, was in Bulgaria as part of a four-day tour of frontline EU member states bordering Russia, Belarus, or the Black Sea. Earlier that day, she visited an ammunition factory in Sopot, Bulgaria, lauding its role in supplying both EU and Ukrainian stockpiles. The following day, she traveled to Lithuania, where she unveiled plans for a five-year economic roadmap to boost defense investment in response to the war in Ukraine and ongoing Russian threats. "You live under geopolitical and economic pressure, as well as constant military and hybrid threats," von der Leyen remarked alongside Lithuanian President Gitanas Nausėda, underlining the daily reality for Europe’s eastern flank.
The GPS jamming incident is far from isolated. NBC News reports that since Russia’s full-scale invasion of Ukraine in February 2022, Europe has seen a dramatic surge in signal interference. The Bulgarian Air Traffic Services Authority confirmed a "noticeable increase" in GPS incidents, including both jamming—where a strong radio signal overwhelms communications—and spoofing, which misleads navigation systems by feeding them false location or time data. In June 2025, thirteen EU member states issued a joint warning about the mounting risks, revealing that Poland alone had logged 2,732 cases of interference in January, up from 1,908 just months earlier. Lithuania recorded 1,185 such incidents in the same month, more than double its tally from March 2024.
Open-source research has repeatedly traced the origins of this interference to two Russian hotspots: the heavily militarized Kaliningrad exclave wedged between Poland and Lithuania, and the St. Petersburg region. Both areas are known to host advanced electronic warfare units. In March 2024, a Royal Air Force plane carrying the UK’s then-defense secretary, Grant Shapps, also reported a spoofing incident near Kaliningrad, though the aircraft continued safely. While these tactics are generally aimed at disrupting satellite-guided weapons and drones, civilian aviation and maritime traffic have become collateral damage—sometimes with potentially disastrous consequences.
For NATO, the incident represents a new level of urgency. Secretary-General Mark Rutte, speaking at a news conference in Luxembourg on Tuesday, didn’t mince words: "It is taken very seriously," he said. "I can assure you that we are working day and night to counter this, to prevent it, and to make sure that they will not do it again." Rutte framed the GPS jamming as part of a broader Russian playbook of hybrid threats—including the cutting of undersea cables in the Baltic Sea, a foiled plot to assassinate a German industrialist, and a cyberattack on the UK’s National Health Service. "The threat from the Russians is increasing every day. Let’s not be naive about it: this might also involve one day Luxembourg, it might come to the Netherlands," Rutte warned, emphasizing that with modern missile technology, "the difference now between Lithuania on the front line and Luxembourg, The Hague or Madrid is five to 10 minutes. That’s the time it takes this missile to reach these parts of Europe."
Yet not all European leaders are treating the incident as a watershed moment. Bulgarian Prime Minister Rosen Zhelyazkov, for example, downplayed the event, telling reporters that Bulgaria would not investigate the jamming because "such things happen every day" as a side effect of the war in Ukraine. This nonchalance stands in contrast to the broader mood in European capitals, where the cumulative effect of nearly 80 tracked incidents—ranging from vandalism and arson to attempted assassinations—has made hybrid warfare a daily concern, as detailed by the Associated Press.
Military and intelligence experts, meanwhile, see Russia’s GPS interference as a calculated move to test Western resolve and readiness. Eric Schouten, CEO of Dyami Security Intelligence, told NBC News that while the jamming incident wasn’t a "major escalation," it was part of Russia’s effort to demonstrate control over critical infrastructure. "NATO is using a lot of GPS tooling and equipment to fly, to guide the bombs," Schouten explained. "It is a perfect tactic to let the enemy know that you are in control of things that they use on a daily basis."
In response, the European Union is rolling out a suite of countermeasures. Plans are underway to deploy additional satellites into low Earth orbit, enhancing the continent’s ability to detect and counteract interference. Alongside Poland, Sweden, and Denmark, the EU is establishing a land-based positioning system around the Baltic Sea. Poland has already set up coastal monitoring stations to trace jamming in real time, while Italy is tightening security for state flights by classifying flight data and restricting access to tracking information. Airlines, too, are updating their procedures to prepare crews for prolonged GPS outages.
The stakes are not merely technical or diplomatic. As General Carsten Breuer, Germany’s top military commander, noted, the frequency and severity of GPS jamming have escalated since the war in Ukraine began—he himself has experienced interference over the Baltic Sea and during exercises in Lithuania. Estonia, Lithuania, Latvia, Sweden, and Germany have all formally declared such interference a form of Russian hybrid warfare, a move that underscores both the gravity and the unity of the European response.
Diplomatic efforts to de-escalate remain fraught. Just weeks before the latest jamming incident, U.S. President Donald Trump met with Russian President Vladimir Putin in Alaska for the first time since 2019, hoping to broker a cease-fire in Ukraine. The summit ended without agreement, and subsequent discussions involving Ukrainian President Zelensky have yielded little progress. As Kremlin aide Yuri Ushakov told Russian media, "So far, what is being broadcast in the press is not exactly what we’ve agreed on. Now they are talking about a trilateral meeting, about a meeting between Putin and Zelensky. But specifically, as far as I know, there has been no agreement between Putin and Trump on this."
With diplomatic channels stalled and hybrid threats mounting, Europe finds itself at a crossroads. The jamming of von der Leyen’s plane may not have been a direct attack on her personally—some analysts suggest it was simply a matter of bad luck—but it has become a powerful symbol of the continent’s vulnerability. As the EU and NATO scramble to adapt, the message from Brussels and beyond is clear: complacency is no longer an option.