Genfer Abrüstungskonferenz
In 1930 and 1931, Stimson was the Chairman of the US delegation to the London Naval Conference of 1930. In the following year, he was the Chairman of the US delegation to World Disarmament Conference in Geneva. The same year, the United States issued the "Stimson Doctrine" in response to Japanese invasion of Manchuria. It stated that the US refused to recognize any situation or treaty that limited US treaty rights or was brought about by aggression.