7 jul 1937 año - Japan invades north china and mongolia

Descripción:

The Second Sino-Japanese War was a military conflict that was primarily waged between the Republic of China and the Empire of Japan from July 7, 1937, to September 2, 1945. It began with the Marco Polo Bridge Incident in 1937 in which a dispute between Japanese and Chinese troops escalated into a battle.

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