B. Mali or Songhai
The two kingdom were involved in trade with the sultanate of Morocco, during the expansive trans-Saharan trade. The sultanate of Morrocco,<span>In 1590, al-Mansur, took advantage of the
recent civil strife in the empire and sent an army under the command of
Judar Pasha to conquer the Songhai and to gain control of the Trans-Saharan trade routes.</span>
It's mostly been done through immigration. The number of the people in the workforce has been going down and it's been solved with immigration because a large number of immigrants are capable of joining the workforce. Also, there's the EU policy that member countries can exchange workforce without having special visas so that helps too.
Answer:
China negotiated a settlement between North and South Vietnam that joined the two countries into a single communist nation.
Explanation:
Vietnam War
North Vietnam established the National Liberation Front on December 20, 1960, to foment insurgency in the South. ... The organization was dissolved in 1976 when North and South Vietnam were officially unified under a communist government.
Put simply, they could no longer use slaves. The slaves were pretty vital to the success of the cotton industry, so until they invented other forms of equivalent (and mostly legal) bondage they had a hard time recovering.
