According to Ban Ki-moon, what lessons should we learn from the genocide in
Rwanda? *

According to Ban Ki-moon, the international community should learn from its failure and take stronger actions to stop the conflicts that are happening in Syria and Central Africa.

Explanation:

Rwanda genocide was a clash between two community, including Hutu and Tutsi. During the Rwandan genocide, it's estimated that members of the Hutu ethnic majority murdered 800,000 Tutsi minority people. U.N. peacekeepers in Rwanda in the early 1990s have been criticized for their unwillingness to stop the genocide. Ban Ki-moon urged the worldwide community to learn from the past and take more effective action to settle the struggles in Syria and Central Africa.

a. favoring native born americans over immigrants.