1. Economic Expansion: Japan was undergoing a period of rapid industrialization and needed access to resources and markets. China, with its vast population and natural resources, was seen as a potential economic powerhouse that could provide Japan with the resources and markets it needed.
2. Military Expansion: Japan had a strong military tradition and believed that it was destined to become a great power in Asia. The Japanese military believed that taking over China and other places in Asia was necessary to secure Japan's national security and to protect its interests against Western powers.
3. Nationalism and Pan-Asianism: Many Japanese people believed that Japan had a special mission to unite and lead all of Asia against Western imperialism. This ideology, known as Pan-Asianism, motivated Japan to take over China and other parts of Asia in order to create a "Greater East Asia Co-Prosperity Sphere" under Japanese leadership.
4. Historical Precedents: Japan had a long history of military expansion and conquest in Asia, dating back to the ancient period. The Japanese military believed that it was their destiny to continue this expansion and to restore Japan's historical greatness.
5. Propaganda and Indoctrination: The Japanese government and military used propaganda and indoctrination to promote their expansionist goals. They portrayed the invasion of China and other Asian countries as necessary for Japan's survival and prosperity, and they encouraged Japanese citizens to support the war effort.
These factors combined to create a strong desire in Japan to take over China and other parts of Asia. The Japanese military was able to capitalize on this desire and launch the Second Sino-Japanese War in 1937, which escalated into World War II in 1941.