the first all black combat regiment was the 54th Massachusetts Infantry Regiment there's not a definitive answer on who the first African American soldier was.
C. Uncertainty.
You can see this with the "Lost generation" PEOPLE
Hey You!
Here are all the statements that apply:
1. France thought the treaty was not tough enough on Germany.
2. Germany was unhappy it could not participate in the treaty negotiations.
4. Great Britain feared that the treaty was too harsh on Germany.
6. Japan was unhappy that its contribution to the war effort had gone unrewarded.
7. Germany resented the fact that it had to sign the treaty or face invasion.
The world saw a major increase in population, which, along with an increase in living standards, led to the depletion of natural resources. The use of chemicals and fuel in factories resulted in increased air and water pollution and an increased use of fossil fuels.