Answer:
The treaty effectively made Mexico two times smaller and doubled the territory of the United States.
They are labeled by Hochschild as the "The second shift".
The Second shift is a term used to portray the workload ladies have well beyond what men have. It came from Arlie Hochschild's book of a similar name. In mainstream society, women's second shift for the most part comprises of Childcare and household work.
Those who have green card status have entered the country legally. They must wait 5 years before you can even apply to become a US citizen and 3 if you are married to one.
Why should someone who entered illegally be entitled to citizenship quicker than someone who has entered legally? There should be some provision for helping those who have entering illegally if their status at home would put them in danger, but immediate citizenship is not the way.
The question is complex and the answer even more complex. Help but don't rob those who are legal residents.
The primary purpose was always to protect the Chinese Empire from the Mongolians and other invaders. Most of the current Great Wall we see today was built in the Ming Dynasty (1368-1644) and is approximately 6000km long.
