Why didn’t America imperialize eastward?

consists of policies aimed at extending the political, economic and cultural influence of the United States over areas beyond its boundaries. Depending on the commentator, it may include military conquest, economic penetration through private companies followed by intervention when those interests are threatened, or regime change.

Explanation:

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.

i believe it would be capitalism