Answer:The war began on the early hours of 6 July 1967 when Nigerian Federal troops advanced in two columns into Biafra. The Biafra strategy had succeeded. The federal government had started the war, and the East was defending itself.
Explanation:hope this helps :)
The decline of the Mongol empire fractured the unity of a lot of the land along the silk road, they became both culturally and economically divided.
B. Lords in feudalism
(Sorry if this is wrong :/)