Russian population 1938 compared to 1945

What enabled the drastic increase in us troop development to vietnam between 1964 and 1965?

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals. b) the government must control a free-market economy, or economic problems will arise. c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?