Answer:
The US Navy's decision victory in the air sea battle(June 3-6/ 1942) and it's successful defense of the major base located at major island dashed japan's hopes of neutralizing the United States as a naval power and effectively turned the tide of World War II in the Pacific.
In general, people in Europe were a bit ahead of the curve in opposing slavery compared to Americans.
Generally they were still racist and imperialist, but at least they'd abolished slavery already in their countries. Even Russia.
Yes, the fourth amendment does this.