Five European Transmission System Operators (TSOs) from Belgium, Denmark, Germany, and the Netherlands signed a Memorandum of Understanding (MoU) at WindEurope's Annual Event in Madrid. Their intention is to enhance the affordability, efficiency, and reliability of the future electricity system by boosting cooperation on offshore cable infrastructure in the North Sea. The signing of this MoU marks the start of a joint European effort to further strengthen the structural robustness of the critical infrastructure needed to make the energy transition happen. The initiative is open to other transmission system operators within the Offshore TSO Collaboration group (OTC), who may join the five participating TSOs later.