Final answer:
The transatlantic slave trade caused an increase in wars in Africa due to the demand for slaves, the introduction of firearms, and the destabilization of African societies.
Step-by-step explanation:
The transatlantic slave trade caused an increase in wars in Africa due to several factors. First, the demand for enslaved people led to conflict and warfare between African kingdoms and tribes in order to capture and sell individuals as slaves. Second, the introduction of firearms by European traders intensified intertribal and interkingdom conflicts, as each group sought to gain an advantage over others. Lastly, the destabilization of African societies caused by the slave trade created power struggles and political instability, further contributing to the outbreak of wars.