Communication and the Hotline between the two
D, because the South's economy depended mostly on agriculture
The “blank check” is an infamous episode in the history of the First World War; the first truly fatal error made by Germany – a promise of unconditional support for whatever action Austria-Hungary might take to punish Serbia.
Laissez-faire, in the capitalist world this is an important doctrine that states that businesses should have the right to as they please with no government intervention. The doctrine promotes capitalism and business overall, in hopes to have a free economy.
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