German prosecutors have filed charges against a Ukrainian national identified only as Serhii K. over the September 2022 explosions that destroyed three of the four Nord Stream pipelines under the Baltic Sea, according to BBC News. The suspect, who was arrested in Italy last summer and extradited to Germany in November, is alleged to have led and coordinated the attack on the pipelines that had been the main conduit for Russian natural gas to Western Europe. He has denied involvement. The charges reportedly include leading a seven-person team in the destruction of civil energy infrastructure, causing an explosion, and deliberately attacking energy installations. The attack released record-breaking volumes of methane into the Baltic Sea and left the multi-billion dollar pipeline infrastructure inoperable. No state has admitted responsibility. Ukraine has consistently denied involvement.
The received wisdom
The liberal-internationalist reading of this prosecution is deeply uncomfortable, and it is worth stating plainly. Nord Stream’s destruction — whoever carried it out — was widely welcomed in Kyiv and in certain Western defence circles as a blow against Russian energy leverage over Germany and Europe. Many Ukrainians regard the perpetrators as heroes who struck at a revenue source funding the war machine that was then killing their countrymen. From this angle, Germany’s pursuit of the prosecution looks at best like an awkward assertion of legal procedure at the expense of wartime solidarity, and at worst like a residual instinct in Berlin to protect its long-standing energy relationship with Moscow at the expense of Ukraine. The Atlantic Council and various liberal commentators have argued that the pipeline was a geopolitical vulnerability dressed up as infrastructure, and that its removal — painful in the short term — ultimately freed Germany and Europe from energy dependence on a state actively committing war crimes next door.
There is something to this. Nord Stream 2 in particular represented a strategic error of historic proportions: the construction of a dedicated energy umbilical to an autocratic neighbour over the objections of Central European allies who had spent decades warning of exactly this risk. That Germany went ahead anyway, for commercial and domestic political reasons, was a failure of strategic imagination that its government has since acknowledged.
A different read
And yet. The decision to blow up civilian energy infrastructure — causing massive methane pollution, destroying billions of euros in assets, and carrying risks of maritime damage — was not made by a democratic government through accountable means. It was, if the charges are correct, a covert operation conducted in secrecy, against infrastructure located in international waters, without the knowledge or consent of the German government that ostensibly owned the receiving end of those pipelines.
The rule-of-law question this raises is not trivial. Democratic societies depend on the principle that governments — and their proxies — do not conduct acts of sabotage in peacetime against the infrastructure of allied states without authorisation. Germany and Ukraine are not at war with each other. Germany is, as BBC reporting notes, Ukraine’s biggest source of European military aid. The prosecution is not an act of hostility toward Ukraine; it is an act of legal accountability for an act that, whatever its strategic rationale, was conducted covertly and caused real harm.
This distinction matters more than it might appear. The argument that the ends justify the means — that destroying Russian revenue infrastructure was strategically correct and therefore should not be investigated or prosecuted — is precisely the reasoning that authoritarian states use to justify their own covert operations. If liberal democracies abandon the principle that covert sabotage of allied infrastructure requires accountability, they invite a world in which that principle no longer holds for anyone. The precedent set by the Nord Stream attacks, if allowed to stand unexamined, is that pipelines, cables, and other civilian infrastructure are legitimate covert targets in any conflict adjacent to a war — including future ones involving non-Russian actors.
Historically, even close allies have prosecuted or investigated actions taken by each other’s operatives when those actions violated the laws of the state where they occurred. The Greenpeace bombing of the Rainbow Warrior by French intelligence agents in Auckland harbour in 1985 resulted in French operatives being tried and imprisoned by New Zealand courts — and the French government ultimately paid compensation. The principle that state proximity to an act does not immunise it from legal consequences is well established in liberal jurisprudence.
There is a further complication: the investigation has never definitively established who authorised the operation. Germany’s Federal Court of Justice, Swedish investigators, and Danish authorities have all been involved at various points. Russian accusations of US or British involvement have circulated without evidence. The charges against Serhii K. address a specific individual’s alleged operational role, not the chain of command above him. Whether German prosecutors will — or can — follow the evidence wherever it leads, including potentially into the Ukrainian state security apparatus, remains an open question. The political pressures on Berlin to limit the scope of the investigation will be immense.
What to watch
The legal trajectory of this case — whether Serhii K. cooperates, names others, or contests the charges — will determine how far the investigation extends. Berlin law firm Menaker’s confirmation of the indictment without detail suggests a defence posture of contesting the facts rather than admitting and justifying. Watch for Ukraine’s official response: Kyiv’s reaction will signal whether it treats this as a purely bilateral legal matter or attempts to escalate it diplomatically. The strain on the Germany-Ukraine relationship is real but probably manageable — what is less clear is whether the charges will produce further indictments, and whether those indictments will eventually point toward state-level decision-makers.
— J