The League of Nations and the Lytton Report
The League of Nations: A New Hope for Peace
- The League of Nations was established in 1919 as part of the Treaty of Versailles.
- Its primary goals were to:
- Promote international cooperation.
- Maintain peace and security through collective security—the idea that aggression against one member would be met with a unified response from all.
The League's founding principles were enshrined in its Covenant, which outlined mechanisms for arbitration, economic sanctions, and, if necessary, military action against aggressors.
The Mukden Incident: A Test of the League's Resolve
- On September 18, 1931, a section of the South Manchurian Railway near Mukden (modern-day Shenyang) was damaged.
- The Japanese Kwantung Army blamed Chinese forces and used the incident as a pretext to invade Manchuria.
- Within months, Japan had established the puppet state of Manchukuo, installing China's last emperor, Pu Yi, as its nominal ruler.
The Mukden Incident was a fabricated excuse for Japanese expansion, as later confirmed by the Lytton Report.
China's Appeal to the League
- China, a member of the League, appealed for assistance under the principle of collective security.
- The League faced a critical decision: how to respond to a major power's blatant act of aggression.
The Lytton Commission: A Fact-Finding Mission
Formation and Objectives
- In response to China's appeal, the League established the Lytton Commission in December 1931.
- Led by Lord Lytton, a British diplomat, the commission included representatives from the United States, France, Germany, and Italy.
- Its mission was to:
- Investigate the causes of the Mukden Incident.
- Assess the legitimacy of Japan's actions.
- Recommend solutions to the crisis.
The United States, though not a League member, participated in the commission, reflecting its interest in maintaining stability in East Asia.
The Commission's Findings
- The Lytton Report, published in October 1932, concluded that:
- Japan had legitimate economic interests in Manchuria but its use of force was unjustified.
- The creation of Manchukuo was a puppet state under Japanese control and lacked legitimacy.
- Manchuria should be restored to Chinese sovereignty, with autonomy to address Japanese concerns.
- The report also emphasized the need for improved Sino-Japanese relations through diplomacy and economic cooperation.
Japan's withdrawal marked the first major defection from the League and highlighted its inability to enforce its decisions.
Why Did the League Fail to Act?
Structural Weaknesses
- The League's decision-making process required unanimous agreement among its members, making decisive action difficult.
- Key powers like the United States were not members, limiting the League's economic and military influence.
The League's reliance on moral condemnation and economic sanctions was ineffective without the backing of major powers like the United States.
Lack of Military Power
- The League had no standing army and depended on member states to enforce its resolutions.
- Britain and France, the League's leading members, were unwilling to commit military resources to a conflict in Asia.
The Great Depression further weakened the resolve of Western powers, as they prioritized domestic economic recovery over international intervention.
Geopolitical Considerations
- France viewed Japan as a potential ally against the Soviet Union and was reluctant to antagonize it.
- Britain prioritized its colonial interests in Southeast Asia and feared provoking Japan into further aggression.
- It's a common misconception that the League of Nations had the authority to enforce military action.
- In reality, it relied entirely on member states to provide troops, which rarely happened.
The Impact of the League's Failure
Encouragement of Aggression
- The League's inability to act decisively in Manchuria emboldened other aggressive powers.
- In 1935, Mussolini invaded Abyssinia (Ethiopia), confident that the League would not intervene effectively.
The League's failure in Manchuria demonstrated that collective security was more of an ideal than a practical reality, paving the way for further acts of aggression in the 1930s.
Undermining of Collective Security
- Japan's withdrawal from the League and its continued expansion in China effectively removed East Asia from the League's sphere of influence.
- The crisis exposed the limitations of the post-World War I international order and the fragility of peace.
- What were the main goals of the League of Nations when it was established in 1919, and how were these tested by the Mukden Incident?
- What was the purpose of the Lytton Commission, and which major powers were represented on it?
- Summarize the key findings of the Lytton Report. How did it assess Japan’s actions in Manchuria?
- Why did the League of Nations fail to act decisively against Japan despite the Lytton Report’s conclusions?
- How did the League’s failure in the Manchurian crisis impact future acts of aggression in the 1930s?


