Later, "Tuga" was accepted into the Defence Intelligence of Ukraine (DIU), where he participated in combat missions in Bakhmut and Zaporizhzhia. Nine months later, he was invited to join the 12th Special Forces Brigade Azov. Since then, he has participated in combat missions in the Kreminna sector while also serving as an instructor for the brigade, teaching firearm handling, tactics, and topography. Currently, João serves as a Battalion Sergeant, responsible for overseeing the enforcement of the commander’s orders and directives and ensuring the smooth operation of the battalion. In addition, he actively participates in training and operation planning and execution, ensuring that the personnel are prepared and aligned with the mission’s objectives. His role also involves supervising the discipline, morale, and well-being of the soldiers under his command.