B/c Europe raped Africa and its natural resources and set borders with no consideration of religious or ethnic boundaries
Federalists believed that the central government should be strong and have a lot of power. They held a loose interpretation of the Constitution, meaning they believed that, if the Constitution didn't say you couldn't do something, you could do it.
Zimmermann telegram- Nothing like negotiating with a neighbor to invade their front lawn.
Unrestricted submarine warfare- Sinking ships owned by the US constantly is already making us angry.
and the sinking of the Lusitania- Now this wasn't the final straw but it did indeed shake US support for Germany and caused outrage all over the USA.
Obedience and trade of cottons and silks back to the hub of the empire