Because they wanted to avoid being involved in any other world wars.
Central and state governments will check each other's power
Residential pattern school segregation is called De Facto segregation. You are absolutely correct.
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The New Testament is a bunch of compiled books were written by Christians in the first century AD
Brinkmanship is a term coined during the Cold War to describe the tactic of seeming to approach the verge of war in order to persuade one's opposition to retreat