Every tribe was different, although certain elements were<span> common to most of the </span>Plains tribes<span>. The true Plains peoples </span>were<span> entirely nomadic,.</span>
Brown V. Board of Education helped the civil rights movement of the 50's as it declared that school segregation between white's and black's was unconstitutuional and therefor not allowed in the United States.
Well, number one is impossible. Great Britain was the first country to industrialize; they started the Industrial Revolution in 1780, with it taking full force in 1840. Japan's industrialization happened with the Meiji Restoration, a full 30 years after the formal beginning of the British industrialization.
2) Literally no one ever conquered Japan. Ask the Mongols- they tried. twice. and failed. twice.
3)Japan only has 20% arable land, so that's not much. And even still, the only country they actually traded with until after their industrialization was the Netherlands.
4) Japan, only a couple hundred miles from China, borrowed many aspect of their culture, which explains why Buddhism played (and still does to an extent) a large role in Japanese society.
So #4 is your answer
The first alternative is correct (A).
A war is a terroir scenario, where the soldiers go through very difficult times. Many lose friends, see the suffering of people, children, anyway. That way, no matter how psychologically strong a soldier is, his emotional state is shaken.
The Vietnam War itself caused many traumas, as it was a very violent war with many deaths and mutilations. In this way, soldiers who have returned alive have gone through many psychological dramas, alcohol vices, drugs, to the point of needing rehabilitation programs.
It shapes the political debate around abolition of drugs in general.