It would be described as Battle of the Atlantic, in World War II, a contest between the Western Allies and the Axis powers (particularly Germany) for the control of Atlantic sea routes. For the Allied powers, the battle had three objectives: blockade of the Axis powers in Europe, security of Allied sea movements, and freedom to project military power across the seas.
Answer:
Postwar recovery that imposed harsh standards on the Southern states and supported newly freed slaves (freedmen) in their pursuit of political, economic, and social opportunities.
Answer:
The percentage of African Americans in the Union army was 10%.
The answer is C. It was the most effective worker's union in the United States at the time, and was not as hostile as other unions, but it wasn't soft on big businesses either! It was quiet left-wing in its views, Socialist in fact. Most members were defectors from the Knights of Labor who were too militaristic for the common man to stomach.
Hope I helped!