I'm 98% sure that it is Cuban insurrection against Spain!!!
Hope this helps!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Imperialism is a policy when a large and/or powerful empire or a nation seeks to extend control over weaker counties that have important resources to them. This control is usually gained by military force.
Mercenaries were groups of people that pretty much had no loyalty to a single nation. The fought along with nations that paid them (roman empire in this case).
Religion. Often times religion is heavily inter-twined with culture.