Since the beginning of humanity, the systematic violation of Human Rights has been witnessed as a consequence of war conflicts, which affects the lives of people outside the war and led to agreements in the name of which the participants adhered to not affecting the civilian population or food resources, among others, and this led to the creation of the Rights of War, or International Humanitarian Law (IHL).However, during the twentieth century there were considerable effects on humanity during the development of the two world wars: the First World War, from 1914 to 1918, and the Second, from 1939 to 1945.This chapter analyzes how during World War II an advance in strategic intelligence was observed, led by the United Kingdom, in which different scientists -including Alan Moore-managed to decode the information of the German attacks to end the conflict.