"<span>a new era of Western imperialism" is not something that is greatly a </span>consequence of ethnic rivalries in African nations, while the rise of dictators has definitely taken place.
One of the results of ethnic rivalries in African countries as of late has been far reaching civil conflict. With colonization, numerous European forces drew fringes which had never recently existed and when de-colonization occurred, many adversary ethnic groups were mixed together or lived in regions where they had never recently lived respectively and this caused a turmoil of pressure.
A few tribes were additionally supported by the European forces, while others were dealt with ineffectively and this kept on strengthening tension.
It was the second of three stages of the so-called triangular trade, in which arms, textiles, and wine were shipped from Europe to Africa, enslaved people from Africa to the Americas, and sugar and coffee from the Americas to Europe.