to help millions of former black slaves and poor whites in the South in the aftermath of the Civil War.
Confederate troops were outnumbered, and they usually lost.
The market economy is an economy type in which the private sector controls all the businesses in the particular economy. The government doesn't have any influence on the production of goods and services. The production of goods is actually determined by the consumers, as they are the ones that buy the products, and they choose the products that have the highest quality with the lowest price, or rather a balance between the two.
In maintaining peace after WWI and to create the League of Nations.