B. The United States had declared war on Japan.
Answer:
Northern: New Hampshire, Massachusetts Bay Colony, Rhode Island.
Middle: Pennsylvania, New York, New Jersey
Southern: North&South Carolina, Georgia
Explanation: plz mark me as brainlist i want to go my next level
Answer:
Major problems at the end of the war included labor strikes and race riots, and a lag in the economy due to farmers' debts. The Red Summer of 1919 saw an increase in violence in more than two dozen cities, as returning veterans (both white and African American) competed for jobs.