In a unitary system, all the power to make legislations, controlling resource, and handling foreign affairs. The states only act as an extension of the federal government without necessarily having an input on any of the decisions.
A unitary system of government is very common in communists countries. The soviet Union used to operated on this system when they controlled the majority part of Eastern Europe.
As a result of economic growth during the 1950s, the percentage of Americans who were in the middle class "increased dramatically". This was due primarily to the fact that there were far more jobs available, since World War II had helped create them.
It helps us better understand the choices of the people before us. If we don't learn about its history then the lives lost fighting would be worthless.
Total war, military conflict in which the contenders are willing to make any sacrifice in lives and other resources to obtain a complete victory, as distinguished from limited war.