请帮忙回答这两题英文问题，对本人来说实在有些难度，尤其我对美国历史不熟，不知怎么回答？？请高手帮帮忙200字左右（用英文回答），万分感激！！
1.Can you define the Cold War? What was detente?
2.Why is it so difficult to bring about peace in the Middle East? Why have the U.S. presidents in most cases been ready to sponsor negotiations between Israel and Palestine?
不好意思，是回答问题不是翻译题目谢谢！！
1 Can you define the Cold War? What was detente?你能定义冷战？缓和是什么？2 Why is it so difficult to bring about peace in the Middle East? Why have the U.S. presidents in most cases been ready to sponsor negotiations between Israel and Palestine?为什么会这样难以实现中东和平？为什么在大多数情况下，美国已准备赞助以色列和巴勒斯坦之间的谈判总统？
