Germany and Japan Sign Anti-Comintern Pact

Context

In the years after World War I, Germany and the Soviet Union maintained pragmatic ties through treaties such as the 1922 Treaty of Rapallo and the 1926 Treaty of Berlin, even as ideological differences simmered. The rise of the Nazi regime in 1933 brought a sharp ideological shift, with Adolf Hitler and his inner circle prioritizing the eradication of communism both domestically and abroad. Joseph Goebbels established the Anti-Komintern organization to coordinate propaganda against the Comintern and the Soviet Union.

Japan, meanwhile, pursued aggressive expansion in Asia following the 1931 Mukden Incident and the establishment of Manchukuo, which brought it into direct competition with Soviet interests in the Far East. The Washington Naval Conference of 1922 had left many Japanese leaders feeling constrained and humiliated by Western powers, fueling militarist sentiment and a desire for stronger partnerships outside the League of Nations framework. Comintern activities and Soviet support for anti-Japanese forces in China added to Tokyo's concerns.

German foreign policy operated under competing centers of power, with Joachim von Ribbentrop's semi-autonomous office often bypassing the traditional foreign ministry led by Konstantin von Neurath. Hitler initially sought to court Britain while containing the Soviet Union, but Ribbentrop saw opportunities for a broader anti-Western alignment that included Japan. These overlapping ambitions and rivalries set the stage for secret negotiations that began in earnest by late 1935.

What Happened

Negotiations accelerated in 1936, driven primarily by Japanese military attaché Hiroshi Ōshima in Berlin and Ribbentrop. Ōshima pushed for a pact focused on opposition to the Comintern, which aligned with Japanese priorities while allowing Germany to advance its own goals. The two sides drafted the agreement by October 23, 1936, incorporating a secret additional protocol that committed both nations to consult on measures against the Soviet Union and to refrain from aiding it in the event of conflict.

On November 25, 1936, the pact was formally signed in Berlin. Ribbentrop, acting as German ambassador-at-large, represented Nazi Germany, while Japanese ambassador Kintomo Mushanokōji signed for the Empire of Japan. The public text pledged mutual consultation and cooperation against Comintern activities, without explicitly naming the Soviet Union. The same day, Ribbentrop informed Mushanokōji that Germany considered its earlier treaties with the USSR void under the secret protocol, a stance the Japanese side welcomed.

Hitler gave his approval shortly afterward. The agreement positioned the two powers as ideological partners against communism while advancing their expansionist agendas in Europe and Asia, though it stopped short of a full military alliance.

Aftermath

The pact drew immediate international attention and condemnation from the Soviet Union, which viewed it as a thinly veiled anti-Soviet arrangement. Italy, which had previously maintained an Italo-Soviet pact, joined in November 1937, expanding the grouping. Spain and Hungary followed in 1939. The agreement served as an early building block for what would become the Axis powers.

Japan distanced itself after the 1939 Molotov-Ribbentrop Pact between Germany and the Soviet Union, though the Anti-Comintern Pact was renewed in 1941 with additional signatories. It was eventually overshadowed by the 1940 Tripartite Pact, which redirected focus toward the United States.

Legacy

The Anti-Comintern Pact symbolized the convergence of two militaristic, expansionist regimes and contributed to the polarization of international relations in the late 1930s. Historians note that its practical military provisions were limited, yet its ideological signaling helped legitimize cooperation between Germany and Japan. It marked a clear departure from earlier German-Soviet accommodations and from Japan's attempts to balance relations with Western powers.

In the longer term, the pact laid groundwork for the Axis alliance during World War II, influencing alignments in both Europe and Asia. Its renewal and expansion during the war underscored the enduring anti-communist rhetoric even as strategic priorities shifted, though the coalition ultimately dissolved with the defeat of the Axis powers in 1945.