Why didn't Axum expand into a large area area?

Axum, while influential in trade and culture in its region, faced several challenges that limited its expansion. Geographic barriers, such as mountains and deserts, restricted military movements and agricultural expansion. Additionally, the empire's focus on trade and maintaining control over its key ports may have resulted in a preference for economic dominance rather than territorial conquest. Internal political dynamics and competition with neighboring powers also played a role in curtailing its expansion.