Analyze Japan’s main reason for territorial expansion in the twentieth century.(1 point) Responses Japan needed more people to work in factories because it had a shortage of workers. Japan needed more people to work in factories because it had a shortage of workers. Japan needed to sell natural resources because its population was shrinking. Japan needed to sell natural resources because its population was shrinking. Japan needed natural resources to provide for its growing population. Japan needed natural resources to provide for its growing population. Japan needed more fishing territory so they wouldn't have to trade for fish.