Economic influence on the job market. People can afford less once they don't have a job. This is one way how the demand for goods and services can shift. Once you don't have enough oney to buy certain goods, the demand for these goods shifts and becomes lower.
Answer:
World War I Germany's unfettered submarine warfare against American ships during World War I provoked the U.S. into abandoning the neutrality it had upheld for so many years. The country's resultant participation in World War I against the Central Powers marked its first major departure from isolationist policy.
Explanation:
They must enlist for the U.S. Military.
