It affected their social lives, and there was very little trade between the two regions (the only ones around.) They also needed many people. They developed irrigation and drainage systems which caused many people to work.
The correct answer is more prosperous and less democratic
Japanese conquests led to a wave of euphoria and enthusiasm in Japan, which, coupled with extensive indoctrination, developed a strong nationalism that defended imperialist ambitions. Throughout the 1920s and 1930s, there was an extreme right-wing authoritarian regime in Japan that fueled nationalist militarism and Japanese imperialism.
This nationalist and imperialist discourse in Japan claimed that the mission in China was unique and exclusively civilizing, but it is known that Japanese interests were motivated by economic issues. During the 1930s, two incidents led to the Japanese invasion of Manchuria (northeastern China) and, finally, the start of the war.
