Ethiopia in World War I

During World War I, Ethiopia briefly forged an alliance with the Allied Powers, following Italy's entry into the war in 1915. In June 1916, a dynastic conflict emerged when the uncrowned Emperor, Lij Iyasu, was alleged to have converted to Islam under the influence of the Ottoman Empire, which led him to be charged with apostasy. As a result, then-regent Ras Tafari Mekonnen, later known as Emperor Haile Selassie, orchestrated a coup d'état in September, deposing Lij Iyasu and installing Empress Zewditu on the throne. Throughout the war, Empress Zewditu maintained a stance of neutrality.

In May 1918, the Allies commended Ethiopia's diplomatic missions to Rome, Paris, and London. While Britain and Italy voiced strong opposition, France extended support for Ethiopia's sovereignty and its admission to the League of Nations. In 1923, Ethiopia joined the League of Nations.