The Baltic Sea, one of the most congested seas in Europe, is particularly vulnerable to pollution due to its shallow depth and enclosed nature. After World War II, tons of German chemical weapons were dumped there on the orders of the Allied forces. It is estimated that around 40,000 tons of these weapons and munitions – including dangerous chemical agents such as sulfur mustard, tabun, and phosgene – now lie on the sea floor. These substances pose a serious threat to both marine life and human health, especially if leaks occur as a result of corrosion in the shells or containers in which the chemicals are stored. Regular monitoring of the condition of these containers is therefore essential. In this context, unmanned maritime systems – including underwater, surface, and aerial vehicles – play a crucial role in monitoring and neutralizing the threats posed by chemical weapons on the Baltic Sea floor. Working in collaboration, these systems can be used for detection, mapping, and environmental analysis to help minimize the risks associated with these substances.