National and international NGO are successfully addressing the problem of Munitions in the Sea. In their role as interfaces of the society towards decision makers on national and regional level is vital. Depending on strategic focus NGO intend to cooperate with science, deliver independent insights for comprehensive handling of munitions in the seas or are lobbying for investments in a better future. Their intermediary function is central for the diverse approaches for solving all kinds of problems related to Munitions in the Sea.