Tensions between Hungary and Ukraine surged after the exposure of a Hungarian military intelligence network in Ukraine’s Zakarpattia region, prompting Budapest to postpone critical bilateral talks. The consultations, set for May 12 in Uzhhorod, aimed to address the rights of the Hungarian minority in Ukraine but were abruptly canceled following mutual diplomat expulsions. Ukraine’s Security Service (SBU) revealed the espionage operation, accusing Hungarian agents of gathering sensitive military data, while Hungary retaliated by dismissing the claims as propaganda. This escalating dispute threatens to further strain relations between the two neighbors, already at odds over Ukraine’s EU aspirations and Hungary’s pro-Russian stance.
The crisis erupted on May 9 when the SBU announced the detention of two Ukrainian citizens allegedly working for Hungarian intelligence. The operation, centered in Zakarpattia—a region with a significant ethnic Hungarian population—reportedly focused on vulnerabilities in Ukraine’s air and ground defenses. Hungary swiftly expelled two Ukrainian diplomats, accusing them of espionage, and Ukraine reciprocated by expelling two Hungarian diplomats. The fallout has cast a shadow over ongoing efforts to resolve disputes over minority rights, a key issue in Ukraine’s EU accession process.
Budapest’s decision to halt the talks reflects deeper geopolitical frictions, particularly Hungary’s opposition to Ukraine’s integration into the European Union. The canceled meeting was intended to kick off regular negotiations, with Ukraine prepared to present progress on Hungary’s demands for enhanced minority protections. Key points of contention include:
- Restoration of Hungarian-language education in Ukrainian schools.
- Recognition of areas with Hungarian populations as minority regions.
- Electoral reforms to ensure Hungarian representation in Ukraine’s parliament.
- Exemptions for public officials from mandatory Ukrainian language requirements.
As both nations navigate this diplomatic storm, the spy scandal has amplified mistrust, raising questions about Hungary’s intentions in the region and its role within NATO and the EU.
Roots of the espionage allegations
The SBU’s announcement marked the first time Ukraine publicly identified a Hungarian intelligence network operating against its interests. The two detained individuals, both former Ukrainian military personnel, were accused of collecting classified information on Zakarpattia’s defense systems. One suspect, a former SBU servicewoman, allegedly provided details on military aircraft and defense units, while the other assessed local sentiment toward a potential Hungarian military incursion.
Investigators seized phones and specialized communication equipment during the arrests, charging the suspects with treason under martial law. The SBU also identified a Hungarian military intelligence officer as the network’s handler, though no arrests have been made in Hungary. The operation reportedly began years ago, with Hungarian intelligence prioritizing Ukraine over Russia, according to a Hungarian journalist’s findings.
Hungarian Foreign Minister Péter Szijjártó dismissed the allegations, calling them a Ukrainian smear campaign motivated by Hungary’s reluctance to support Kyiv’s war efforts against Russia. In a video statement, he accused Ukraine of using anti-Hungarian propaganda to deflect from domestic issues. The rapid tit-for-tat expulsions—two diplomats from each side—underscored the deepening rift, with both nations refusing to back down.
Zakarpattia’s ethnic Hungarian community
Zakarpattia, a western Ukrainian region bordering Hungary, is home to approximately 80,000 ethnic Hungarians, making it a focal point of bilateral tensions. The community has long been caught between Budapest’s nationalist agenda and Kyiv’s efforts to strengthen national unity. Hungary argues that Ukraine’s language and education laws, enacted since 2017, restrict the rights of ethnic Hungarians by prioritizing Ukrainian in schools and public life.
Local dynamics add complexity to the dispute. In some Hungarian-majority villages, residents align culturally with Budapest, setting clocks to Hungarian time and tuning into Hungarian state media. These outlets often criticize Ukrainian authorities and echo Russian narratives, fueling perceptions of disloyalty among some Ukrainians. However, ethnic Hungarian leaders, such as history professor László Zubánics, emphasize the community’s contributions to Ukraine, noting that hundreds have fought—and dozens have died—in the war against Russia.
The spy scandal has heightened suspicions in Zakarpattia, with Ukrainian authorities wary of foreign influence in a strategically sensitive border region. Meanwhile, Hungary’s demands for minority privileges, including state-funded Hungarian-language schools, have stalled Ukraine’s EU accession talks, as Budapest wields its veto power within the bloc.
A spy war has erupted between Hungary and Ukraine, with both countries expelling diplomats — Péter Magyar may be tied to Ukrainian intelligence efforts to destabilize Prime Minister Orbán’s government. https://t.co/xyXIQEta3a
— Hungarian View (@bristoliUK) May 12, 2025
Hungary’s pro-Russian stance fuels mistrust
Hungary’s alignment with Moscow has been a persistent source of friction with Ukraine and other EU members. Prime Minister Viktor Orbán has maintained close ties with Russian President Vladimir Putin, opposing EU sanctions on Russia and blocking military aid to Kyiv. His government’s refusal to supply weapons to Ukraine and its advocacy for an unconditional ceasefire have drawn criticism from NATO allies.
In 2023, a controversial incident involving the transfer of 11 Ukrainian prisoners of war from Russia to Hungary—without Kyiv’s knowledge—further strained relations. The POWs, allegedly of Hungarian descent, were released to Budapest under murky circumstances, with only one having verifiable Hungarian roots. The episode raised concerns about Hungary’s coordination with Russia, particularly in Ukraine’s border regions.
Orbán’s recent referendum, launched in April 2025, to gauge public opinion on Ukraine’s EU membership has intensified the dispute. Accompanied by anti-Ukraine and anti-EU campaigning, the vote underscores Hungary’s leverage over Kyiv’s European ambitions. Ukrainian President Volodymyr Zelenskyy countered by claiming that most Hungarians support Ukraine, highlighting a divide between Orbán’s government and public sentiment.
Diplomatic expulsions deepen the rift
The mutual expulsion of diplomats marked a sharp escalation in the Budapest-Kyiv feud. On May 9, Szijjártó announced that two Ukrainian diplomats were expelled for alleged espionage activities under diplomatic cover. Ukraine’s Foreign Minister Andrii Sybiha responded hours later, declaring two Hungarian diplomats persona non grata and ordering them to leave within 48 hours.
The expulsions followed a pattern of retaliatory actions, with both sides accusing the other of fabricating claims to justify their moves. Szijjártó framed Ukraine’s actions as part of a broader anti-Hungarian campaign, tied to Budapest’s opposition to Ukraine’s NATO and EU integration. Ukrainian officials, meanwhile, pointed to the SBU’s evidence as proof of Hungary’s hostile intentions, particularly in Zakarpattia.
The diplomatic fallout has disrupted planned negotiations, with Ukraine’s delegation left stranded in Uzhhorod after traveling for the canceled talks. The postponement delays progress on Hungary’s 11 demands for minority protections, which Kyiv had hoped to address through expert groups formed earlier in 2025.
EU accession talks face new hurdles
Hungary’s veto power within the EU has been a significant obstacle to Ukraine’s membership aspirations. Despite Ukraine gaining candidate status in 2022 and fulfilling key legislative benchmarks, Budapest has repeatedly blocked the opening of negotiation clusters. The spy scandal has further complicated these efforts, with Hungary citing the incident as evidence of Ukraine’s unreliability.
European Commissioner for Enlargement Marta Kos emphasized that Ukraine is ready to advance, having met the required conditions. However, Hungary’s demands for restoring pre-2017 minority rights legislation remain a sticking point. The EU has sought to mediate through dialogue, with Kos citing a 2023 instance when Hungary abstained from blocking Ukraine’s candidate status as a precedent for compromise.
The canceled Uzhhorod talks were seen as a critical step toward resolving these issues, with Ukraine prepared to present interim results on Hungary’s demands. The postponement now risks delaying Ukraine’s EU integration, as Budapest continues to tie minority rights to broader geopolitical objectives.
Regional security concerns rise
The espionage allegations have raised alarms about Hungary’s activities in Zakarpattia, a region critical to Ukraine’s western border security. The SBU’s claim that Hungarian agents assessed local reactions to a potential military incursion has fueled speculation about Budapest’s long-term intentions. Over the past decade, some Hungarian lawmakers have openly discussed annexing Zakarpattia, citing the region’s ethnic Hungarian population.
Ukraine’s military, already stretched by the ongoing war with Russia, views the scandal as a potential threat to national security. Zakarpattia’s proximity to NATO and EU borders makes it a sensitive area, with any foreign interference likely to draw scrutiny from Western allies. The SBU’s ongoing investigation aims to uncover additional members of the spy network, with authorities vowing to prosecute those involved.
Hungary’s dismissal of the allegations has done little to ease concerns, particularly given its history of prioritizing intelligence on Ukraine over Russia. NATO security officials, as reported by Hungarian journalist Szabolcs Panyi, have noted Budapest’s focus on Kyiv since at least 2023, raising questions about its commitment to alliance priorities.
Minority rights at the heart of the dispute
Hungary’s demands for enhanced protections for ethnic Hungarians in Ukraine have been a recurring issue since 2015, when Kyiv introduced reforms to strengthen the Ukrainian language in education and public administration. Budapest argues that these laws disadvantage the Hungarian minority, particularly in Zakarpattia, where Hungarian-language schools once operated with greater autonomy.
Ukraine has made concessions, including plans to form expert groups to assess Hungary’s 11 recommendations. These include recognizing schools with even one Hungarian class as Hungarian institutions and amending electoral laws to ensure Hungarian representation. However, Kyiv has resisted demands to exempt public officials from Ukrainian language requirements, citing the need for national cohesion during wartime.
The spy scandal has shifted focus from these negotiations, with Hungary accusing Ukraine of using the allegations to avoid addressing minority rights. Ukrainian officials counter that Budapest is exploiting the issue to block EU accession, aligning with Moscow’s interests in destabilizing Ukraine’s Western integration.
Public reactions in Hungary and Ukraine
The scandal has sparked varied responses in both countries. In Hungary, Orbán’s government has framed the SBU’s allegations as an attack on Hungarian sovereignty, rallying domestic support through state-controlled media. The ongoing referendum on Ukraine’s EU membership, running through May 2025, has amplified anti-Ukrainian sentiment, with campaign materials criticizing Kyiv’s treatment of ethnic Hungarians.
In Ukraine, the revelations have deepened mistrust toward Hungary, particularly in Zakarpattia. Social media posts reflect outrage over the alleged spying, with some users accusing Budapest of collaborating with Russia to undermine Ukraine’s security. Local leaders, however, have urged calm, emphasizing the loyalty of ethnic Hungarians to Ukraine despite Budapest’s provocations.
The diplomatic row has also drawn attention from EU and NATO allies, with some expressing concern about Hungary’s actions. French Foreign Minister Jean-Noël Barrot, speaking on May 12, called for transparency in the matter, underscoring the need for unity among NATO members during Russia’s ongoing invasion of Ukraine.
Broader geopolitical implications
The Budapest-Kyiv dispute has reverberated across Europe, highlighting divisions within the EU and NATO. Hungary’s pro-Russian policies, including its reliance on Russian gas and opposition to EU sanctions, have isolated it from many Western allies. The spy scandal risks further eroding Budapest’s credibility, particularly as it holds the EU presidency in 2025.
Ukraine, meanwhile, faces mounting pressure to balance its EU aspirations with domestic security concerns. The war with Russia, now in its third year, has strained resources, making diplomatic disputes like this one particularly costly. Zelenskyy’s government has sought to maintain dialogue with Budapest, but the latest escalation has dimmed hopes for a quick resolution.
The EU has intensified efforts to mediate, with leaders like Germany’s Chancellor Friedrich Merz and Poland’s President Andrzej Duda advocating for Ukraine’s integration. However, Hungary’s veto power remains a formidable barrier, and the spy scandal has given Budapest additional leverage to stall progress.
Ongoing investigations and next steps
The SBU continues to investigate the Hungarian spy network, with authorities working to identify other potential agents. The two detained suspects face life imprisonment if convicted of treason, and Ukraine has signaled its intent to pursue all leads, including the Hungarian intelligence officer allegedly overseeing the operation.
Hungary, for its part, has shown no signs of backing down, with Szijjártó reiterating that Budapest will not tolerate what it calls Ukrainian provocations. The canceled Uzhhorod talks have no rescheduled date, leaving the minority rights negotiations in limbo. Ukraine’s delegation, led by Deputy Prime Minister Olha Stefanishyna, has expressed disappointment but remains committed to addressing Hungary’s demands through future dialogue.
As the diplomatic crisis unfolds, both nations are bracing for further fallout. The EU and NATO are likely to closely monitor developments, particularly given Zakarpattia’s strategic importance and Hungary’s contentious role within Western alliances. The scandal has underscored the fragility of Ukraine’s western flank, even as it battles Russian aggression in the east.
