The 1899 Hague Declaration concerning Expanding Bullets. A treaty effective for more than 100 years faces complex contemporary issues
The 1899 Hague Declaration (the Declaration) is a treaty prohibition based on particular technical specifications about a weapon system, namely, the construction of bullets. The Declaration has been widely adhered to and has assumed the status of customary law. Although there have been allegations of violations of this treaty, to our knowledge none have been proven. From this point of view, the Declaration could be regarded as an effective treaty.