The RMS Lusitania was a ship that sailed from New York and had American civilians in - at that point the US was neutral in the WWI -, when the ship came to the sight of the Irish Coast the German U-boat attacked it.
Despite the fact that Americans were horrified at the Lusitania attack, many Americans did not like the idea to enter the war, Irish Americans did not enjoy the idea of helping Britain because the country denied Ireland its independence, German Americans were sympathetic towards their ancestral homeland and Americans saw no reason to enter into a war between European powers. The US only entered war two and a half years after it started.
All the nations(for example Europe) was included in the Great War. The Civil War only included the Union and the Confederate states.
Answer:
Sugar Act.
Explanation:
Parliament, desiring revenue from its North American colonies, passed the first law specifically aimed at raising colonial money for the Crown. The act increased duties on non-British goods shipped to the colonies.