Final answer:
Axum's rise to power was chiefly enabled by its prime location on important trade routes between the Roman Empire and India, driving economic prosperity through commerce.
Step-by-step explanation:
The Kingdom of Axum's rise to power was largely due to its strategic location on major trade routes, which facilitated commerce between the Roman Empire and India. Axum's location on the Red Sea allowed it to become a powerful economic force by controlling and benefiting from the lucrative trade of goods such as ivory, spices, gold, and silver.
The fourth-century king Ezna significantly expanded the kingdom's territories and influence, with the trade at Adulis creating a continuous flow of wealth. Furthermore, Axum's trading capability was enhanced by the minting of their own coins to facilitate transactions. Although Axum had a strong military presence, its wealth and power were primarily due to its role as an essential hub in international trade networks.