The roles of consumer in allocating resources is that they serve as the driver of demand for goods. Producers provide the supply of goods. Therefore, it is the relationship between both the producers and consumers or supply and demand which helps to determine the allocation of resources and also the prices of goods and services.
Military forces, berlin wall, iron curtain
Hope these may help , pictures from my history book
The manifest destiny is the belief or a doctrine that existed in middle of 19th century ,that it was the destiny of the united states to expand its territory over the whole of north america .