Alfred Loisy lived through the wars of 1870, the First World War and the beginnings of the Second, without having seen peace. This painful experience is reflected in his interest in war and peace efforts in his work, from the Assyrian wars, Homeric to the wars of his time, in which he denounced the spirit of brutality of ancient times contrary to the spirit of brotherhood of the Gospel. However, he admitted just wars against aggressor peoples. Despite his scepticism about the League of Nations and efforts to resolve conflicts through legal arbitration, he advocated beating the drum for humanity.