I think its Citizen participation
Hope this helped
Answer:
Control of Adulis allowed Axum to be the major power on the Red Sea. This port was the principal staging area for Kaleb's invasion of the Himyarite kingdom of Dhu Nuwas around 520. ... In any case, the sea power of Axum waned and security for the Red Sea fell on other shoulders.
The answer to this is true
Imperialism had fed into European tensions because of the high number of European countries competing for colonies all over the world.