GENERAL KNOWLEDGE

Detailed explanation-1: -On September 18, 1931, an explosion destroyed a section of railway track near the city of Mukden. The Japanese, who owned the railway, blamed Chinese nationalists for the incident and used the opportunity to retaliate and invade Manchuria.

Detailed explanation-2: -The Manchurian Crisis 1931-1933 followed the Mukden Incident in which Japanese rail tracks were destroyed in an explosion. Claiming that it was saboteurs, the Japanese responded with force, taking control of the Chinese province of Manchuria.