A device for reducing the effective radar cross section (RCS) of a naval vessel is proposed, the device comprising a cladding panel, which can be mounted on vessel superstructures or cargo of the naval vessel, the cladding panel being permeable to radar beams, the device also comprising a reflection means, which reflects radar beams, and the reflection means also being embedded in the cladding panel and being aligned at least partially inclined with respect to a main plane of extent of the cladding panel.