Once again the REX exercise took place between 11/7 and 13/7 at Base Naval do Alfeite. This exercise brought together the research teams Mobile and Autonomous Robotics (MARS) from the Robotics and Industrial Complex Systems (RICS) and the team from the Portuguese Navy. Distinct exercises have been carried out simulating distinct scenarios in an environment close to a real scenario, namely testing the cooperation between two autonomous vehicles (Aerial and Aquatic) towards detecting and identifying migrant boats in the Mediterranean, for example.