Problems they faced were coming back to America, without any food and money , also they suffered loss of friends and family who were also in the war. A country usually has to recoup after a war, which usually causes an increase in poverty and homelessness. So summarily the freedman had to build their lives again and adapt to the new environment of America.
Sunni and Shiite are two factions of "Islam", and it is because of this divide in the religion (among other reasons) that the Middle East has experienced so much turbulence.
Capitalism is my best guess, considering it is one of the few forms of economy that allows mostly free production. Free enterprise could also be the answer.
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Hope this helps click on the picture to get a full view. My phones glitchy glad I can type this much!
One of the main justifications to use the atomic bomb against Japan during World War II was "<span>a. To intimidate the Soviets", although a far greatest reason was to force the Japanese to surrender. </span>