Answer: lifestck theft
Conflict with Mexico began when the United States annexed Texas as a state in 1845. Mexico claimed that the new border between Texas and Mexico was the Nueces River, while the United States contested the border was the Rio Grande.
Explanation:
pls mark brainliest:)
D, he had created a monopoly for himself
John Jacob Astor established trade and trading posts throughout North America.
However, his most famous trading post was on the Columbia River at Fort Astoria, which became the first major American trading post on the Pacific Coast.
Astor profited handsomely from the fur trade and was wildly wealthy.
Answer: to encourage farmers to grow fewer crops since demand was low