- The Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare (The 1925 Geneva Protocol), which Syria signed on 17 December 1968;
- 《关于禁用毒气或类似毒品及细菌作战方法议定书》（《1925年日内瓦议定书》），叙利亚于1968年12月17日签署该议定书；