Answer:
The kingdom of Aksum lost its hegemony when it lost control of navigation in the Red Sea, which affected its economy.
Explanation:
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In the mid-6th century AD, the economy of the kingdom of Aksum began to decline, as the Umayyad caliphate expanded throughout Egypt and Arabia, weakening commercial activity.
Trade was the mainstay of the Aksum economy, for which it was necessary to maintain control of navigation over the Red Sea.
First, Aksum lost of the port of the city of Adulis in the hands of the Persians and later, the lands that it held in Asia by the Arabs. This situation finally produced the territorial isolation of the kingdom.
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