Answer:
Two arguments for the United States entering World War I:
1. Protection of American interests: Germany's unrestricted submarine warfare threatened American economic interests, as American ships carrying goods to Britain and other Allied powers were being sunk. The sinking of the Lusitania in 1915, which resulted in the deaths of 1,198 people, including 128 Americans, further fueled calls for US involvement in the war.
2. Upholding democratic values: President Wilson believed that the war was a fight for democracy against tyranny, and that the US had a duty to help the Allies in their struggle. In his famous speech to Congress in 1917, Wilson stated that the world must be made safe for democracy and that the US must fight for the rights of all nations to choose their own form of government.
Two arguments for the United States remaining neutral in World War I:
1. Avoiding entanglements in European conflicts: Many Americans believed that the US should stay out of the war and avoid involvement in the affairs of other nations. They argued that the war was a European conflict and that the US had no national interest in getting involved.
2. Cost of war: The US was still recovering from the economic impact of the Pancho Villa Expedition and the Mexican Revolution, and many Americans were concerned about the financial cost of entering the war. They feared that US involvement would result in a loss of American lives and resources, and would ultimately be detrimental to the country's economy.