The political doctrine, which flourished in the nineteenth century, claiming that the benefits of democracy would flourish along with territorial expansion

This doctrine is called Manifest destiny. It also stated that the expansion of the settlers into the new world is inescapable and will happen at some point regardless.

This is called Manifest Destiny, this is the belief that settlers were destined to expand across North America, and by doing so democracy would flourish along with expanding their territory.

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We don’t know what the question is buddy

If u can translate that to english i will surely you!