The second live-fire cyber exercise of the European Defence Agency (EDA), specifically dedicated to improving European cooperation between member states’ national military Computer Emergency Response Teams (CERTs) has reached and concluded its second edition in the last days of January 2022. Even though European countries have established mechanisms and processes to exchange information between civilians of the CERTs over time, cooperation and communication channels are much less developed in the military domain due to the high sensitivity of the information. Therefore, many stakeholders have decided to extend the information sharing practices used in civilian circles to military CERT and their operations. Through this Info flash, we will briefly investigate the birth of this project, the two editions carried out and conclude with a perspective on the future.