The purpose of a two or three party system is to ensure that different political perspectives and constituencies are represented. It also allows different people to be represented in the political process.
To stop supplies going to Britain and France. I think. Hope i helped
The chief result of U.S participation in World War 1 is, that the U.S forces ended the stalemate and let go an allied victory. The U.S was the force they needed
Assuming you're referring to the raid on Harper's Ferry, Douglass's account could indeed be trusted based on the fact that he had communicated extensively with John Brown (although his bias should still be taken into account, of course).
Answer:
Depends.
Explanation:
It depends on the types of conflicts, in the end it's up to congress to decide if we should. We intervene in vietnam as there was a fear of a knock-on effect, cambodia might go to communism if vietnam fell to communism. We only left the war due to increased public dislike of the war, not to consider the deaths of the war and the cost.