Ukrainian Ex-Officer Faces Trial in Germany for Alleged Role in Nord Stream Pipeline Sabotage

A former Ukrainian military officer is on trial in Germany, accused of orchestrating the 2022 operation that sabotaged the Nord Stream gas pipelines, severing Western Europe's primary supply of Russian natural gas. The trial commenced Wednesday at the Hamburg Higher Regional Court and is anticipated to continue until February of next year. This marks the first public examination of evidence in an investigation that has spanned several years.

The defendant, identified only as Serhii K. under German privacy regulations, is 50 years old and is alleged to have led a team of Ukrainian agents, including divers and an explosives specialist, in what is considered one of the most significant infrastructure sabotage operations in recent history. Serhii K. denies all charges and is the sole individual facing trial in this case.

Prosecutors state that Serhii K. was apprehended in Italy in August 2025 and subsequently extradited to Germany in November of the same year. He is accused of collaborating with other military personnel to plan the operation on behalf of unspecified Ukrainian state entities. It is alleged that he entered Germany via Poland using a counterfeit Ukrainian passport approximately three weeks prior to the attack. The group reportedly utilized a sailboat, hired in the northern city of Rostock, to reach a location near the Danish island of Bornholm. There, they allegedly attached military-grade explosives with timers to the pipelines on the seabed.

German prosecutors contend that the destruction of civilian infrastructure through such means constitutes a war crime. The blasts, detected by Swedish seismologists on September 26, 2022, with some occurring 17 hours apart, resulted in the rupture of three of the four Nord Stream pipelines. This event led to significant methane emissions into the atmosphere. Nord Stream 1 had been supplying approximately half of Germany's natural gas imports, while its counterpart, Nord Stream 2, though constructed, never became operational after Berlin rescinded its approval shortly before Russia's invasion of Ukraine.

Moscow has denied responsibility for the explosions and had already reduced gas supplies in response to European sanctions. The Ukrainian government has also denied any involvement. Russia has stated it expects a