Answer:
It was to outproduce capitalist nations.
Explanation:
"The religious fervor spawned by the Second Great Awakening created another incentive for the drive west. Indeed, many settlers believed that God himself blessed the growth of the American nation. The Native Americans were considered heathens. By Christianizing the tribes, American missionaries believed they could save souls..."
Or
Louisiana Purchase, 1803
Mexican cession 1849
and also, although not in the west, the annexation of Florida 1819
Considering the fact that Europe before the renaissance period was empty in most places due to plagues and poor living conditions once things slowly started to get better people started living in cities again and in larger populations so I believe the answer is A.
There is so many reasons but they are complicated to explain
This is true because the countries all wanted to be more wealthy since wealth=strength
