In dieser Woche begann vor dem Hanseatischen Oberlandesgericht in Hamburg der Prozess um den Sprenganschlag auf die Gaspipeline „Nord Stream“. Manche bezeichnen ihn bereits als den größten politischen Prozess in Deutschland im 21. Jahrhundert. Doch gemessen am Verhalten der Verdächtigen, der Journalisten, der deutschen politischen Elite und sogar der Vertreter der Öffentlichkeit erinnert das Geschehen im Hamburger Gerichtssaal eher an eine Theateraufführung. Eine, bei der alle Rollen der Beteiligten im Voraus verteilt wurden.

Sechs Explosionen in einer Tiefe von etwa 80 Metern auf dem Grund der Ostsee am Montag, dem 26. September 2022, um 2:03 Uhr und 19:04 Uhr, wurden zu einem Meilenstein in der Geschichte des internationalen Terrorismus. Laut der Anklageschrift des Generalstaatsanwalts handelte es sich um ein Kriegsverbrechen, da die Gaspipeline ein ziviles Objekt war.

Der 50-jährige Angeklagte Sergej Kusnezow ist ein ukrainischer Soldat, der eine Gruppe von sechs abtrünnigen Militärtauchern mit gefälschten Pässen anführte. Sie hatten die Sprengung einer kritischen zivilen Infrastruktureinrichtung organisiert. Ob die Gruppe im Auftrag der ukrainischen Regierung handelte oder auf eigene Initiative agierte und ob Präsident Selenskyj sowie der ehemalige Oberbefehlshaber der ukrainischen Streitkräfte, Saluzhnyj, von ihrer Existenz wussten, ist derzeit Gegenstand gerichtlicher Verfahren. Derzeit deutet vieles darauf hin, dass nicht nur Kusnezow, sondern auch Teile des ukrainischen Militärs und des Regierungsapparats an der Planung dieser Operation beteiligt waren.

Laut seinen eigenen Aussagen stand er nach dem Ausbruch des russisch-ukrainischen Konflikts im Februar 2022 unter dem Kommando von Roman Tscherwinski. Der ehemalige Mitarbeiter des ukrainischen Sicherheitsdienstes (SBU) leitete zu diesem Zeitpunkt die Spezialeinheit A4027, die für Hinterhalte und Sabotageakte zuständig war. Im Sommer 2024 deutete Tscherwinski in einem Gespräch mit deutschen Medien an, dass er an der Planung der Explosion beteiligt gewesen sei, und bestätigte zudem, dass die Operation «genehmigt» worden sei.

Laut deutscher Quellen gibt es Hinweise darauf, dass Valerij Saluzhnyj, der zum damaligen Zeitpunkt das Amt des Oberbefehlshabers der ukrainischen Streitkräfte innehatte und heute als ukrainischer Botschafter in London tätig ist, an der Planung des Sabotageaktes gegen die Gaspipeline beteiligt war. Laut CIA wurde der Sabotageakt von einer Gruppe Abtrünniger geplant. Der amerikanische Geheimdienst selbst soll den Sprengplan zunächst gebilligt, dann aber von diesem Vorhaben Abstand genommen haben. Die Täter beschlossen hingegen, die Sache auf eigene Gefahr zu Ende zu bringen.

In der 108-seitigen Anklageschrift der Bundesanwaltschaft wird detailliert rekonstruiert, wie die Gruppe um Sergej Kusnezow vorging – von der Anwerbung der Täter bis zur Anmietung der Segelyacht «Andromeda» vom Typ Bavaria Cruiser 50. Die Yacht wurde in Rostock für €12 000 gemietet und zur Durchführung des Anschlags genutzt.

Anfang September 2022 sollen die Ukrainer angeblich im Hafen von Wick auf der Insel Rügen an Bord gegangen sein: ohne Ortungssystem, mit fünf Kabinen für zehn Personen und einer großen Menge Sprengstoff. Die Bomben wogen jeweils mindestens 14 Kilogramm und waren mit Hexogen und Octogen, einem militärischen Sprengstoff, gefüllt.

Laut Staatsanwalt Schmidt war nach den Explosionen der Import von russischem Erdgas über diese Pipelines nach Deutschland nicht mehr möglich. Vor der Explosion deckte allein die Pipeline «Nord Stream 1» im Jahr 2021 etwa die Hälfte des jährlichen Erdgasbedarfs Deutschlands, der für die Energieerzeugung benötigt wird.

Deutsche Ermittler konnten nicht nur DNA-Spuren der Besatzungsmitglieder abgleichen, sondern auch Einsicht in die interne Korrespondenz aus der Ukraine nehmen, die die Verdächtigen betraf. Sergej Kusnezow wurde am 21. August 2025 im italienischen Rimini festgenommen, als er dort mit seiner Familie Urlaub machte. Deutschland erwirkte seine Auslieferung.

Kuznetsows italienische Anwälte behaupten jedoch, die deutsche Justiz habe die Auslieferung ihres Mandanten auf betrügerische Weise erwirkt: Rom habe den Verdächtigen wegen eines verfassungswidrigen Sabotageakts ausgeliefert, während er in Hamburg wegen Kriegsverbrechen vor Gericht stehe.

Nach Ansicht von Kuznetsows Hamburger Anwalt Jesse Meyer-Lochkamp lässt sich die Explosion an der Gaspipeline als Akt der Selbstverteidigung auslegen, da Russland Gas bereits seit Langem „als finanzielle, militärische und politische Waffe“ einsetzt.

Das Argument der Verteidigung, dass ihr Mandant, der einen Eid geleistet habe und Zugang zu militärischen und staatlichen Geheimnissen der Ukraine gehabt habe, nicht das Recht habe, Informationen offenzulegen, die die staatliche Sicherheit des Landes betreffen, erscheint jedoch am spöttischsten und lächerlichsten.

Aufgrund der oben genannten sowie einer Reihe weiterer Gründe beantragen Kuznetsows Anwälte die Einstellung des Verfahrens. Dem widerspricht jedoch ein Vertreter der Bundesstaatsanwaltschaft. Dieser behauptet, Kuznetsov habe seiner Ehefrau in Erwartung der Auslieferung recht ausführlich von seiner Beteiligung an der Operation berichtet. Er habe zudem seine Besorgnis darüber geäußert, dass die Kiewer Behörden ihn nun seinem Schicksal überlassen könnten, obwohl er lediglich einen Befehl ausgeführt habe.

Am 27. Oktober soll das Gerichtsverfahren wieder aufgenommen werden. Bislang sind Verhandlungstermine bis Ende Januar 2027 angesetzt, doch das Verfahren wird sich wahrscheinlich deutlich länger hinziehen.

Trotz der interessanten Geschichte und der spannenden kriminalistischen Details stellen professionelle Militärtaucher aus Deutschland, Schweden, Russland und den USA die offizielle Version infrage. Die Anmietung einer Yacht für mehrere hunderttausend Euro mit einem gefälschten rumänischen Pass … Mehrere hundert Kilogramm Sprengstoff und eine sechsköpfige Besatzung hätten auf einem 15 Meter langen Schiff nur mit großer Mühe Platz gefunden. Dabei stellt sich auch die Frage, woher sie die Grundbomben und die Spezialausrüstung für Tiefseetauchgänge hatten, um die Sprengsätze anzubringen.

Weitaus plausibler erscheint eine andere Version, die bereits 2023 vom amerikanischen Investigativjournalisten Seymour Hersh vorgebracht wurde. Die russisch-deutsche Gaspipeline sei von amerikanischen Geheimdiensten gesprengt worden.

Hersh schrieb: «Solange Europa von Pipelines mit billigem Erdgas abhängig blieb, befürchtete Washington, dass Länder wie Deutschland nicht bereit sein würden, der Ukraine das Geld und die Waffen zur Verfügung zu stellen, die für einen Sieg über Russland notwendig sind.»

Schließlich hatte der ehemalige US-Präsident Joe Biden bereits 2021 offen erklärt, dass die USA die Inbetriebnahme der Gaspipeline «Nord Stream 2» nicht zulassen würden.
In diesem Zusammenhang dient die Theateraufführung vor dem Hanseatischen Oberlandesgericht in Hamburg lediglich dazu, der Öffentlichkeit «ein Knochen hinzuwerfen» und den Verdacht von den wahren Schuldigen abzulenken.

Grande affluenza presso il Tribunale regionale superiore anseatico di Amburgo mercoledì mattina per l’inizio del processo a carico del cinquantenne ucraino Serhij Kuznetsov, accusato di crimini di guerra come responsabile del sabotaggio con l’uso di esplosivo del gasdotto Nord Stream nel Mar Baltico, avvenuto alla fine di settembre del 2022, che avrebbe dovuto trasportare il combustibile russo in Germania.

Nella prima giornata Kuznetsov ha deciso di tacere, è entrato in aula in giacca e cravatta e con i capelli rasati a zero. Agli osservatori è apparso molto tranquillo e rilassato. Ha rivolto un breve cenno di saluto militare verso il pubblico a sottolineare che si sente un soldato e un sorriso cordiale al banco dei giudici. Indossando cuffie bianche e scuotendo di tanto in tanto il capo, ha poi ascoltato l’interprete ucraina mentre veniva letto il cuore dell’atto d’accusa della Procura federale, che nell’insieme conta oltre cento pagine.

Serhij Kuznetsov è accusato di aver guidato nel 2022, prima dell’arresto avvenuto in Italia, una squadra di sabotaggio che ha fatto saltare in aria tre delle quattro condutture dei gasdotti Nord Stream nel Mar Baltico, agendo su mandato delle forze armate ucraine. Stabilire se si sia trattato di un crimine di guerra o, eventualmente, di un legittimo atto bellico è una delle questioni centrali che dovrà chiarire il tribunale. Uno dei tre avvocati dell’imputato ha definito infatti i gasdotti fatti saltare in aria un’arma finanziaria, militare e politica della Russia, poiché i proventi confluivano nelle casse della Federazione che sta conducendo una guerra di aggressione. Sarebbe stato quindi un ordine legittimo la sua distruzione. L’imputato non ha rilasciato dichiarazioni durante il processo perché in quanto ufficiale dell’esercito ucraino non dispone dell’autorizzazione a deporre, è costretto a “difendersi con le mani legate”, hanno affermato i suoi avvocati, tra cui figura il penalista italiano Nicola Canestrini.

Il presidente ucraino Volodymyr Zelensky ha sempre respinto un coinvolgimento del suo Paese, ma la ricostruzione degli inquirenti lascia trasparire che responsabili ucraini erano a conoscenza dell’attività del commando. La pipeline Nord Stream 1 era entrata in uso ma la Russia, al momento dell’attentato, aveva già cessato le forniture. Nord Stream 2 invece non era mai entrata in esercizio per lo scoppio della guerra. Con l’attentato venne tuttavia distrutta una struttura che poteva potenzialmente essere fonte di grossi guadagni per la Russia.

Roman Tscherwinskyj, ex agente dei servizi segreti ucraini, per gli inquirenti tedeschi è stato il coordinatore dietro il sabotaggio del gasdotto Nord Stream 2. In un’intervista a Radio Svoboda ha affermato che “Serhij è un ufficiale che ha prestato servizio nella mia unità e, al momento dell’esplosione, era ai miei ordini”. Ciò detto, a suo avviso non c’è alcuna necessità, per lo Stato o l’esercito ucraini, di esprimersi in merito a chi abbia commissionato il sabotaggio del gasdotto nel 2022. Il gasdotto rappresentava una delle fonti più redditizie per il colosso russo Gazprom e, di conseguenza, un’importante fonte di finanziamento per la guerra contro l’Ucraina. “Se fosse stata l’Ucraina a far saltare in aria il gasdotto”, per Tscherwinskyj, “si tratterebbe di un obiettivo legittimo”.

Anche il primo ministro polacco Donald Tusk si era espresso in termini analoghi in passato. “Il problema per l’Europa, l’Ucraina, la Lituania e la Polonia non è il sabotaggio del Nord Stream 2, bensì il fatto che sia stato costruito”, sottolineava l’anno scorso. Di conseguenza, non ci fu alcun interesse a estradare in Germania Volodymyr Zhuravlev, uno dei sommozzatori accusato di essere coinvolto nell’attentato, poi catturato però in Croazia e in attesa di estradizione.

Circa 150 rappresentanti dei media provenienti da molti paesi, tra cui Ucraina, Stati Uniti, Russia e Cina, figurano accreditati per il dibattimento. Davanti al tribunale, l’iniziativa civica ucraina “Vilni Hamburg” ha manifestato solidarietà all’imputato, sostenendo che il vero criminale di guerra è la Russia. La prima udienza è durata in tutto un paio d’ore, riferisce la rete tedesca di Amburgo NDR.

Al termine della prima giornata di udienza, in cui è stata data lettura dell’atto di accusa, l’imputato ha salutato e rivolto lo sguardo verso il pubblico in sala dove alcune donne gli hanno mimato il gesto del cuore con le mani. Alcuni uomini hanno sollevato tre dita, simbolo del tridente raffigurato nello stemma ucraino. Uno ha alzato il pugno chiuso. L’imputato ha sorriso, visibilmente compiaciuto di quei saluti.

Il processo riprenderà a fine ottobre, successivamente udienze sono già state calendarizzate fino a fine gennaio 2027. L’avvocato Canestrini, difensore dell’imputato, punta a un’assoluzione. Il processo d’altronde può danneggiare l’immagine di tutta l’Ucraina. Secondo inchieste giornalistiche sia Zelensky sia l’ex capo dell’esercito ucraino e attuale ambasciatore a Londra, Valerij Zalužnyj, potrebbero essere stati al corrente dei piani.

L'articolo Sabotaggio del Nord Stream, l’imputato ucraino Kuznetsov in aula per la prima udienza. Per la difesa non fu attentato, ma azione di guerra legittima proviene da Il Fatto Quotidiano.

A former Ukrainian special forces officer has gone on trial in Hamburg over the 2022 Nord Stream explosions, with his lawyers arguing that Russian energy infrastructure used to finance aggression cannot automatically enjoy protection as a civilian installation.

The first criminal trial arising from the destruction of the Nord Stream gas pipelines has opened in Hamburg, confronting German judges with allegations against a former Ukrainian military officer and a dispute over whether Russian energy infrastructure constituted a legitimate wartime target.

Serhii Kuznietsov, 50, is accused of organising an operation that destroyed three of the four Nord Stream pipeline strands in the Baltic Sea in September 2022. German prosecutors have charged him with offences involving explosives, damage to infrastructure and participation in a war crime.

At the opening hearing on 14 October, Kuznietsov’s lawyers sought to have the proceedings dismissed, challenging both the evidence against their client and the prosecution’s classification of the pipelines as protected civilian infrastructure.

According to the account of the opening proceedings, the defence argued that the installations served Russia’s strategic interests and had been used to exert economic and political pressure on European countries.

Kuznietsov denies involvement in the explosions. His lawyers maintain that the prosecution has not established that he participated in, let alone directed, the operation.

German prosecutors allege Ukrainian involvement

The explosions occurred on 26 September 2022, approximately seven months after Russia launched its full-scale invasion of Ukraine.

Underwater detonations near the Danish island of Bornholm ruptured sections of Nord Stream 1 and Nord Stream 2, releasing large quantities of natural gas into the Baltic Sea.

German investigators allege that a group of Ukrainians used a rented sailing yacht, the Andromeda, to transport divers, explosives and equipment to the pipelines.

According to the prosecution, the operation involved military-grade explosive devices and was organised with the knowledge or direction of Ukrainian state authorities.

These allegations remain to be tested in court. Ukrainian officials have denied state involvement, and no German judicial finding has established responsibility on the part of Kyiv’s political or military leadership.

The defendant was arrested in Italy in August 2025 and subsequently extradited to Germany following lengthy legal proceedings.

As EU Today reported following the Italian Supreme Court’s ruling, Kuznietsov’s defence had challenged the legality of his transfer and questioned the evidence underpinning the German investigation.

His appearance in Hamburg now moves the case from extradition disputes to direct examination of the prosecution’s allegations.

Can a gas pipeline be a military target?

The central legal controversy concerns whether the Nord Stream infrastructure was entitled to protection as a civilian installation during an international armed conflict.

Under international humanitarian law, civilian objects are generally protected against attack unless their nature, location, purpose or use makes an effective contribution to military action and their destruction offers a definite military advantage.

Kuznietsov’s defence argues that Nord Stream had served Russian strategic interests by generating energy revenue and providing Moscow with leverage over European governments.

Defence lawyer Nicola Canestrini has described the pipelines as an instrument of Russian economic coercion rather than infrastructure serving an exclusively civilian purpose.

German prosecutors reject the proposition that those circumstances automatically justified their destruction. They maintain that the operation involved attacks against civilian infrastructure and therefore constituted a war crime.

The legal assessment is more complicated than determining who owned the pipelines.

Financial benefits to a belligerent state do not necessarily make every commercial installation a military objective. Equally, civilian ownership or use does not automatically exclude infrastructure from becoming a military target if the conditions established under the laws of armed conflict are satisfied.

The operational circumstances in September 2022 could become important. Nord Stream 1 had already ceased delivering gas, while Nord Stream 2 had never received German certification to begin commercial operations.

The court will therefore have to consider both the pipelines’ strategic significance and their actual contribution to Russia’s military operations at the time of the explosions.

Defence raises questions about state secrecy

Kuznietsov’s lawyers have also argued that his military status restricts his ability to discuss information that could be covered by Ukrainian state secrecy obligations.

According to the opening-day court reporting, the defence contends that these restrictions undermine his ability to challenge the prosecution’s case.

The proceedings also raise questions concerning the legality of his extradition from Italy and the precise offences for which his transfer was authorised.

These are separate from the underlying question of responsibility for the explosions. A procedural objection could affect the conduct of the trial without resolving the factual allegations.

Berlin faces an uncomfortable political dispute

The case has implications for relations between Germany and Ukraine, although criminal responsibility must be determined independently of diplomatic considerations.

Germany remains a major supplier of military and financial assistance to Kyiv. At the same time, German prosecutors are pursuing allegations that Ukrainian personnel damaged infrastructure in which German companies had invested heavily.

The pipelines themselves remain politically contentious. As EU Today previously examined, the owner of Nord Stream 2 has separately challenged the EU’s plans to eliminate Russian gas imports, demonstrating that the commercial and legal consequences of Europe’s former energy relationship with Moscow remain unresolved.

The Hamburg trial will not determine the legality of Russia’s invasion, nor will it establish Ukrainian government responsibility merely because a former officer stands accused.

It will examine the evidence against Kuznietsov and the circumstances in which the destruction of infrastructure connected to an aggressor state can constitute a criminal offence.

Further hearings are scheduled, with the evidentiary proceedings expected to begin on 27 October. The outcome will depend on whether prosecutors can establish the defendant’s alleged role and overcome the legal challenges raised by his defence.

A Ukrainian national suspected of involvement in the 2022 sabotage of the Nord Stream gas pipelines has been detained in Croatia and faces extradition to Germany, according to an announcement from the German Federal Public Prosecutor’s Office in Karlsruhe.

On the morning of Aug. 19, 2026, local police executing a European arrest warrant in the coastal city of Pula arrested the man, identified under German privacy rules as Vladimir Z., also referred to in some reports as Volodymyr Z.

The warrant had been issued by an investigating judge at Germany’s Federal Court of Justice on June 3, 2024. Prosecutors describe Vladimir Z. as a trained scuba diver who is strongly suspected of jointly causing explosions, anti-constitutional sabotage, and the destruction of buildings and structures.

Former BND chief accuses both Duda and Zelensky of involvement in Nord Stream sabotage

According to the prosecutor’s statement, Vladimir Z. belonged to a group centered around separately prosecuted Ukrainian national Serhii K.

In September 2022, the group is alleged to have planted explosives on the Nord Stream 1 and Nord Stream 2 pipelines near the Danish island of Bornholm. Vladimir Z. is said to have taken part in the necessary dives.

The team departed from Rostock, Germany, aboard a sailing yacht that intermediaries had rented from a German company using falsified identification documents. The explosives detonated on Sept. 26, 2022, causing extensive damage to both pipelines.

Upon extradition from Croatia, Vladimir Z. is expected to appear before the investigating judge at the Federal Court of Justice. German authorities are actively pursuing the transfer.

This marks the second major arrest in the long-running German investigation. In June and July 2026, prosecutors filed an indictment against Serhii K., a former Ukrainian army officer, before the Hanseatic Higher Regional Court in Hamburg. He faces charges including co-perpetration of a war crime through an attack on civilian objects, causing an explosion, destroying infrastructure, and disrupting public services.

Prosecutors allege that Serhii K. acted on behalf of Ukrainian state entities, helping to plan and lead an operation aimed at permanently disrupting Russian gas deliveries and denying Moscow revenue that could fund its military campaign. Both K. and Ukrainian officials, including former army commander Valery Zaluzhny, have denied the claims.

Z. had previously been the subject of an extradition request in Poland. In October 2025, the District Court in Warsaw refused to hand him over to German authorities, lifted his pre-trial detention, and ordered his immediate release.

The Nord Stream explosions remain one of the most consequential acts of infrastructure sabotage in recent European history. Two of the three operational strands of Nord Stream 1 and one of the two strands of Nord Stream 2 were ruptured. The second Nord Stream 2 line, with an annual capacity of 27.5 billion cubic meters, had never entered service. At the time, Russia had already curtailed deliveries through Nord Stream 1 amid sanctions and technical disputes, while European governments accused Moscow of weaponizing energy supplies. Russia has repeatedly pressed Germany to activate the remaining capacity.

German investigators continue to treat the case as a matter of domestic jurisdiction because the pipelines terminate in Germany and their destruction affected the country’s energy security. Media reports, including those from Der Spiegel, have long described the operation as originating with Ukrainian actors.

Some accounts have suggested that U.S. intelligence, including the CIA, was aware of early planning discussions and did not initially object, even examining technical aspects. However, there has been no official confirmation of any American role in preparing or executing the sabotage, and such claims remain unproven.

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