Not sure what wat you refer to...but after WWI the US saw themselves in the Great Depression due to self economic dispute and the the deal to fund Germany which would pay back France and Britain. After WWII they almost immediately entered the Cold War with the Soviet Union.
Answer:
Jobs that turn raw materials or resources into usable finished products are part of the secondary sector.
Explanation:
I hope this helps :)
https://eji.org/reports/online/lynching-in-america-targeting-black-veterans/red-summer
hope this helps :) oh and good luck!