Although the subject of law of naval warfare was first in modern treatymaking in international humanitarian law (IHL), further treatymaking efforts that comprehensively deal with all matters of the law of naval warfare never really took off. This particular part of IHL has always been primarily governed by custom. Scholarly calls for revision have not pressed States into further treatymaking efforts, which gives the law of naval warfare a semblance of being continuously in a state of crisis. Conveniently for States, the San Remo Manual solved a significant portion of this crisis, but perhaps too successfully, as it may have taken away incentives for States to further develop the law. While the law of the sea has been steadily growing as a – codified – legal regime and protective rules of IHL garnered much attention, the law of naval warfare seems somewhat forgotten and crumbling in its details.
