<span>u.s. entry into WWI caused industrial psychologists to begin working with the military.After entering into world war-I there is a need for U.S to train their military and develop the army's strength and capability.Psychological research and treatment are important to national defense. Research can show how to improve military training, job assignment and equipment design. Treatment can help personnel cope with stress. Psychologists conduct research on human behavior and treat patients with mental problems. so,industrial psychologists to begin working with the military.</span>
If i remember correctly i’m pretty sure they were the nazis
1. It enabled the Chinese people to navigate the seas and participate in sea trade.
2. It inspired China to expand its army and conquer more territory.
The answer is strong banking system but it’s not there