Answer:
movement to share the wealth with non-industrialized nations
Step-by-step explanation:
During the Age of Imperialism, states main goals were to spread their religion which includes their culture, and gain resources. In some cases, nations (specifically U.S.) would imperialize under the guise of helping the under-developed nation, but in actuality was wanting to imperialize for their own gain (aka religion, resources, expansion of their own power, idea of social darwinism regarding that its the survival of the fittest, if they don't gain more power, the other powerful countries will come for them).
Example of this would be the Spheres of Influence/ Open Door Policy and Scramble for Africa, Philippines/Cuba/Guam
Overall: Ethnocentrism, desire to spread Christianity (religion), and competition between industrialized nations for access to raw materials are all causes of the modern Age of Imperialism.