League of Nations/Revision

Manchuria

A region in northeast China, rich in natural resources, invaded by Japan in 1931.

Mukden Incident

The event in 1931 when Japanese troops staged a railway explosion as a pretext to invade Manchuria, marking the beginning of the Japanese invasion.

League of Nations

An international organization established after WWI to promote peace, failed to stop Japan’s actions.

Lytton Commission

A commission established by the League of Nations in 1931 to investigate the Mukden Incident and the situation in Manchuria, ultimately condemning Japan's invasion.

Manchukuo

The name given by Japan to Manchuria after the invasion, ruled by a puppet leader.

Lytton Report

The official report produced after an investigation by an international commission, which declared Japan the aggressor in Manchuria.

Collective Security

The international principle or idea that aggressive territorial expansion is unacceptable and should be stopped by collective action.

Puppet State

The term for an independent country in name only, controlled behind the scenes by another power—in this case, Manchukuo under Japan.

Vilna Crisis

A 1920 dispute where Poland seized the Lithuanian capital; the League failed to resolve it.

Corfu Crisis

A 1923 diplomatic crisis stemming from the assassination of an Italian official in Greece, leading to Italy's occupation of the Greek island of... The League of Nations intervened but struggled to resolve the conflict effectively.

Bulgaria

Country involved in a 1925 League dispute after being invaded by Greece in the "Greek-Bulgarian Incident."

Åland Islands

A group of islands disputed between Sweden and Finland

Rapallo Treaty

A 1922 agreement between Germany and the Soviet Union re-establishing diplomatic relations and renouncing claims.

Locarno Treaty

A 1925 treaty guaranteeing borders between Germany, France, Belgium, and agreements on demilitarization.It aimed to secure peace in Western Europe and was seen as a key step in the reconciliation of Germany with its neighbors after World War I.

Kellogg-Briand Pact

A 1928 international agreement where signatories renounced war as a tool of national policy.

Washington Naval Treaty

An agreement aimed at preventing a naval arms race after WWI by limiting the size and number of battleships among naval powers