In the 1820s, the united states was concerned about european ambitions in the americas because it feared europe wanted to
a-conquer the united states.
b-conquer new latin american republics.
c-become allies with russia.
d-become allies with mexico.

In the 1820's, the United States was concerned about European ambitions in the Americas because it feared Europe wanted to conquer the United States. The United States had just gained their independence and they thought that Europe wanted to take control of some portions of the American continent. The correct answer is A.