The answer is C former slaves fighting in the Union army were essential to several Northern Victories.
US contribution in Nicaragua uncover about the Reagan organization is that it was ready to work outside the law to accomplish its objectives. The Reagan organization's strategy towards Nicaragua delivered a noteworthy conflict between the official and authoritative arms as Congress tried to confine if not check through and through the capacity of the White House to bolster the Contras.
Invasions by Barbarian tribes
Economic troubles and overreliance on slave labor
