Littoral areas pose challenges to all European Union members with sea access, in both military and civilian terms. Most current challenges might be solved with constant surveillance of the entire littoral area. Possible mean of constant surveillance might be sophisticated unmanned aerial systems due to their economic and practical application. Unmanned aerial systems are a modern combar or non-combatant mean that has been proven in all recent conflicts. It can be used in a wide plethora of missions. Basic elements of unmanned aerial system are unmanned aerial vehicle, ground monitoring station and a communication link. Due to the large increase in flight operations performed by different unmanned aerial vehicles, need to integrate unmanned aerial vehicles into controlled airspace has emerged. Upon complete integration of unmanned aerial vehicles into controlled airspace, sophisticated systems for littoral area surveillance might be introduced. This will reduce number of maritime accidents int the littoral area and speed up search and rescue operations as well, while significantly reducing amount of resources spent on these kind of activities.