Ukraine conducted strikes against Crimea’s power grid and Russian refineries on the 1639th day of the Russo-Ukrainian war. Simultaneously, Croatian authorities arrested a Ukrainian diver, sought by Germany in connection with the 2022 Nord Stream pipeline explosions. This arrest revives a previously stalled German investigation into the sabotage of the critical gas infrastructure. Details regarding the diver’s alleged involvement and the nature of the Croatian investigation remain limited. The timing of the arrest, coinciding with Ukrainian military actions, is notable. This development introduces a new layer of complexity to the ongoing conflict and international investigations surrounding energy security. It remains unclear how this arrest will impact relations between Ukraine, Germany, and Croatia.