Answer:
the answer is location be the sea
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The main world leaders at the time were
Hitler - Germany
Franklin D. Roosevelt - USA
Mussolini - italy
Churchill - Britain
stalin- russia
The kingdom was rich in gold and other minerals such as iron, following the decline of Meroe.In addition, the kingdom naval power necessitated it to offer ferry services for goods to and from Rome and India. the kingdom more also had a very good harbor at Idris.
B .international trade along the east africa coast led to intermarriages,introduction of new products,money economy,architecture and rise of new people such as the Swahili