International Committee of the Red Cross additional protocol to the Geneva Convention was adopted in 1925 which outlawed the use of suffocating or poisonous gases and biological agents as weapons. Four years later, the original Convention was revised and the second Geneva Convention "relative to the Treatment of Prisoners of War" was established. The events of World War I and the respective activities of the ICRC significantly increased the reputation and authority of the Committee among the international community and led to an extension of its competencies. As early as in 1934, a draft proposal for an additional convention for the protection of the civil population
International Committee of the Red Cross official delegates from national governments, six delegates from other non-governmental organizations, seven non-official foreign delegates, and the five members of the International Committee. The states and kingdoms represented by official delegates were Grand Duchy of Baden, Kingdom of Bavaria, Second French Empire, United Kingdom of Great Britain and Ireland, Kingdom of Hanover, Grand Duchy of Hesse, Kingdom of Italy, Kingdom of the Netherlands, Austrian Empire, Kingdom of Prussia, Russian Empire, Kingdom of Saxony, United Kingdoms of Sweden and Norway, and Spanish Empire. Among the proposals written in the final resolutions of the conference, adopted on 29 October 1863, were: Only