Which group of invaders were descendants of the huns, fought on horseback, and invaded europe from the east?

"globalization has greatly impacted the united states and american citizens. first and foremost, globalization has spread american influence throughout the world. globalization has opened up more markets for the united states, which in effect american companies sell their products worldwide. there has been a rise of multinational corporations and their influence has greatly increased."

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.