In the late 1840s, what challenges did Mexicans living in territory ceded by Mexico face?

In the late 1840's Mexicans living in territory ceded by Mexico faced the challenge of having their families split across two nations.

Explanation:

"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."