Question

Why and how did the nation expand in territory and influence and what were the effects?

Answer 1

Answer: Military Conquest

Step-by-step explanation:

The U.S. expanded its territory largely through military conquest. Even purchases from other European powers, such as the Louisiana Purchase and Alaska, were done at the expense of indigenous people who already had a claim to the land. Ideology fueled the conquest of much of the southern part of the North American continent.