用英语回答下面两个有关于美国历史的英文题目.
Q1.The United States has been involved in numerous wars and military actions throughout the 20th century.Select ONE war or military action from List A.Then Select ONE war or military action from List B.
List A:Spanish American War; Korean War; Vietnam War.
List B:World War I; World War II; Gulf War(War with Irag I).
For the two wars or military actions you have selected,compare their causes and consequences(please give short answer).
Q2.Ranking Presidents is a favorite pastime of historians.Below are listed six President's form the 20th century.Three are considered to be successes,three failures.Choose on President from each list.Explain why onw is considered successful while the other is not(please give short answer).
Successful Presidents:Teddy Roosevelt; Franklin Rooselvelt; Ronald Reagan.
Failed Presidents:Herbert Hoover; Richard Nixon; Jimmy Carter.