1) Japan struggled with maintaining a democratic government in the early 20th century as the military grew more powerful and influential.
2) In the 1930s, militarists took control of the government and pursued expanding Japan's empire through invading neighboring countries like Manchuria and China to acquire land and resources.
3) The Japanese military brutally massacred an estimated 200,000-300,000 civilians in the city of Nanjing during their invasion and occupation of China in 1937, driven by beliefs of Japanese racial superiority.