During the civil war this region had the advantage of being home two thirds of the country's population giving it more available men for military services
.south
.north

The correct answer is North

Explanation

During the American Civil War (1961 - 1965) The Northern states of the nation, also known as the union, were characterized by having a stable economy with industrial development that provided the necessary resources for war such as uniforms, food, and armament which gave the North an advantage. On the contrary, the Southern states known as The Confederation were in a bad economic situation as due to the high inflation they  suffered from the shortage of food and other resources necessary for the war including weapons. Besides this, the population of both sides differnt in the case of the North the population was around twenty-two million people in 1961 while in the South, the population was only nine million people and a large part of them were black slaves, which gave the North multiple advantages in the war. So, the correct answer is North.

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