The thesis begins with a short section on the nature of neutrality in Europe in the 1930s, and briefly introduces the political circumstances of the six nations that remained neutral throughout the war. The primary subject of the paper deals with the relationship between the belligerents and the neutral states, especially the extent to which military strength and preparedness was responsible for the latter maintaining their neutrality.

This thesis investigates the relationship between Fascist Italy and the League of Nations (LoN) during the interwar period, with a particular focus on the years from 1922 to 1935. This relationship was contradictory, shifting from moments of active collaboration to moments of open disagreement. The existing historiography on the Italian membership of the League has not reflected this oscillation in policy, focusing disproportionally on the crises Italy caused at the League. However, Fascist Italy remained in the League for more than 15 years, ranking as the third-largest power, and was fully engaged in the institution's work. This dissertation investigates the dynamics that developed between Fascist Italy and the LoN through a systematic study of the Italians involved. In so doing, it contributes to the historiography of the LoN and of the Italian foreign policy in the interwar period. The thesis argues that there was more to the Italian membership of the LoN than the Ethiopian crisis. It reveals the extent of the Italian presence and activity in the institution from the beginning, and demonstrates that the organization was more important to the Italian government than previously recognized. Membership of the League was essential to guarantee Italy international legitimation and recognition. Through an active appropriation of internationalism, the Italian government hoped to obtain practical benefits in the colonial sphere. The thesis uncovers the depth and variety of interactions between nationalism and internationalism in the case of Italy and the League, establishing that they did not oppose each other but rather interacted. This dissertation illustrates the complexity of being an Italian working in the League, as well as the grey areas between nationalism and internationalism evident within individual experiences. Finally, it shows the continuity of actors and expertise in Italy's international cooperation between the interwar and the post-1945 period.