Germany Confronts Persistent Russian Espionage with Diplomatic Expulsions

Berlin has escalated its efforts to counter extensive Russian intelligence activities within its borders, expelling numerous Russian diplomats in a concerted move to reduce Moscow's alleged espionage network. The actions underscore a deepening deterioration in bilateral relations, marked by persistent accusations of spying and subsequent retaliatory measures from the Kremlin. This ongoing diplomatic friction highlights Germany's growing concern over national security in the face of what it describes as pervasive and aggressive foreign intelligence operations.

The most recent significant action occurred in mid-April when Germany expelled a substantial number of Russian diplomats, citing their activities as inconsistent with their diplomatic status and aimed at reducing the presence of Russian intelligence services in the country. While some reports indicated around 30 planned expulsions, other sources suggested that as many as 50 Russian diplomats were sent back to Russia via a government plane from Moscow on April 22. This move followed weeks of discussions between the federal government and Russian authorities regarding the staffing of foreign missions, which Germany viewed as necessary to curb Russian intelligence operations. Russia swiftly responded by declaring more than 20 German diplomats persona non grata, forcing them to leave the country. German Foreign Minister Annalena Baerbock characterized the Russian retaliation as expected but unwarranted, asserting that the expelled German staff had always adhered to their diplomatic duties.

Russian intelligence activities in Germany have long been a subject of concern for Berlin. Annual reports from the Federal Office for the Protection of the Constitution (BfV) consistently highlight a high level of activity by Russian intelligence services. German counterintelligence agencies estimate that a significant portion of Russian diplomatic personnel in Berlin, potentially as high as one-third of the approximately 180 individuals, may be intelligence agents operating under diplomatic cover. The methods employed by these services are varied, encompassing cyberattacks, sabotage, disinformation campaigns, covert influence operations, and secret information gathering. Key targets often include digital, military, and other critical infrastructure, as well as political, economic, social, and scientific spheres within Germany. The Federal Foreign Office has previously indicated that Germany decided to expel Russian diplomats due to numerous reports concerning the large-scale activities of Russian secret services on German territory.

This pattern of expulsions and counter-expulsions is not isolated. In April 2022, Germany had already expelled 40 Russian diplomats whom it considered a security threat, a decision then Foreign Minister Annalena Baerbock justified by stating that these individuals "did not serve diplomacy for a single day" but rather worked against Germany's freedom and social cohesion. Russia responded by expelling 40 German diplomats in what it termed a "symmetrical response," denouncing Berlin's actions as "unfriendly." Earlier, in January 2022, a Russian diplomat linked to an espionage case involving a Russian researcher at a Bavarian university was also quietly expelled. The researcher, identified as Ilnur N., was suspected of passing information on European rockets to Russian intelligence. This particular case was part of a broader investigation into alleged espionage by Russia's SVR foreign intelligence agency.

Several high-profile cases have underscored the pervasive nature of Russian espionage. In December 2022, Carsten L., an employee of Germany's foreign intelligence agency (BND), was arrested on suspicion of treason for allegedly passing classified information to Russia. Reports indicated that Carsten L., a director in technical reconnaissance, leaked sensitive data, including Ukraine invasion intercepts and cybersecurity details, to Russia's Federal Security Service (FSB) for approximately 450,000 euros. The information reportedly included details on how German services infiltrated Russian electronic communications, posing a significant risk to German security. Another individual, Arthur E., was also implicated in this scheme, allegedly carrying digital copies of documents to Moscow and delivering them to the FSB. The investigation into Carsten L. was initiated after a tip-off from a friendly Western intelligence service. Beyond these significant cases, Germany has also seen a German army officer involved in passing classified military information to a Russian consul in 2005, and a German man charged in 2020 for allegedly passing information on properties used by the German parliament to Russian military intelligence. Recent incidents in 2024 and 2025 further illustrate the ongoing challenges, with two Russian-German citizens, Dieter S. and Alexander J., allegedly plotting sabotage against U.S. bases in Germany involved in training Ukrainian forces.

The consistent expulsions of Russian diplomats and the uncovering of espionage cases reflect a significantly strained relationship between Germany and Russia. While diplomatic expulsions are a long-standing tool in international relations, their frequency and scale have intensified, particularly following Russia's full-scale invasion of Ukraine in 2022. These actions signal Germany's firm stance against perceived threats to its national security and its commitment to defending its sovereignty and democratic institutions. The incidents have further eroded trust between the two nations, impacting channels of communication and exacerbating existing geopolitical tensions. As Germany continues to support Ukraine and re-evaluate its foreign policy, the vigilance against foreign espionage remains a critical component of its national security strategy, suggesting that such confrontations may continue to define aspects of German-Russian relations in the foreseeable future.