As a practical matter, the Kellogg–Briand Pact did not live up to its primary aims, but has arguably had some success. It did not end war or stop the rise of militarism, and was unable to keep the international peace in succeeding years. Its legacy remains as a statement of the idealism expressed by advocates for peace in the interwar period. However, it also helped to erase the legal distinction between war and peace, because the signatories, having renounced the use of war, began to wage wars without declaring them, as in the Japanese invasion of Manchuria in 1931, the Italian invasion of Abyssinia in 1935, the Spanish Civil War in 1936, the Soviet invasion of Finland in 1939, and the German and Soviet invasions of Poland.