Question

Why did japan begin to rely on militarism

Answer 1

Becasue the government was worried about the country's ability to protect itself.

Answer 2

The Great Depression affected Japan greatly, and led to a rise in militarism. ... This led to a feeling in Japan that they should become more self-sufficient, through gaining more territory. This meant that Japan wanted to expand in order to gain more natural resources and to create its own economic empire in the Pacific.