A. Exports of U. S agriculture goods to postwar Europe B. Resistance to the soviet blockade of west Berlin

C. Economic aid to Europe under the Marshall plan

D. U. S air power over Germany during the World War II

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.