Why were pro-slavery southerners eager to push for further expansion in Nicaragua, Cuba, and other areas in the 1850s?  

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pohnpei397 | College Teacher | (Level 3) Distinguished Educator

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Basically, pro-slavery Southerners like William Walker wanted to conquer lands like Cuba and Nicaragua so as to expand the territory that would be open to slavery.  This idea was spelled out most famously in the Ostend Manifesto, which advocated taking Cuba by force if necessary.  By this time (the 1850s) the issue of slavery seemed to be decided with the continental US.  There seemed to be no room for slavery to grow.  Therefore, many Southerners wanted to take more land outside the US so as to increase the power of the slave states relative to the free states.


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