The flying buttress is a characteristic of Gothic art.
The Turks were defeated by Crusaders at Jerusalem because "they could not remain united," since it was this lack of unification that led to their forces being divided and reckless. <span />
Answer:
The phrase means that European powers should leave the continent, allow Africans to become independent nations and refrain from interfering in their economy. It was a claim similar to the Monroe Doctrine: Africans don't interfere in Europe, Europeans shouldn't interfere with Africa.
