Serhii K, identified by German prosecutors as Serhii Kuznetsov, appeared in a Hamburg court on Wednesday, accused of plotting with other Ukrainian military personnel to destroy Russia's gas pipelines to Germany. The attacks occurred in September 2022, and Serhii K was extradited from Italy late last year. He denies the charges, which German prosecutors allege were carried out "by order of Ukrainian state agencies" to stop Russia from financing its war with gas revenue. The case is highly sensitive, given Germany's role as a close ally of Ukraine.