REPMUS centers on several key areas. Firstly, it emphasizes innovative operational concepts for enhanced maritime efficiency, security, and sustainability. Moreover, it prioritizes enhancing interoperability among diverse unmanned systems, fostering seamless communication. In addition, it explores technological advancements related to sensors, actuators, and C41 systems for Maritime Unmanned Systems (MUS). Furthermore, REPMUS conducts large-scale multinational and multidomain experimentation to assess MUS effectiveness. Additionally, collaboration across Operational Communities, Academia, and Industry drives innovation. Lastly, the program focuses on training, doctrine development, and strategic messaging for MUS integration into NATO operations.