What are examples of return migration in world history?

Ineed asap i will give 30 pointsps: the last word says splits

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?

Why did the united states lead a coalition to invade iraq in 1991? o a. there was a fundamentalist revolution in iraq. o b. iraq had invaded iran. o c. an oil embargo had started in the middle east, o d. iraq had invaded kuwait.