What did the line of the Missouri Compromise define?

Need this !how did the war of 1812 contribute to an increase in u. s. manufacturing? a) the war provided more resources for factories to increase production. b) the war promoted trade between countries so that americans could focus on fighting. c) the war cut americans off from their previous supply of imported manufactured goods. d) the war limited transportation in america, making it necessary to import manufactured goods.

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

What is the main idea of this excerpt