The Americans felt that it was their destiny to expand their territory. They didn't want any other countries to take land from them. They only wanted to protect their land.
They were justified.
Spanish explorer Hernando de Soto became the first recorded European to
reach the Mississippi River, which he called Río del Espíritu
Manifest Destiny is the belief that Americans had the right, or even the duty, to expand westward across the North American continent from the Atlantic Ocean to the Pacific Ocean. This would spread the glorious institutions of civilization and democracy to the barbaric Native Americans.
Near the tropics would be your answer hoped that helped:)
What are you in the first grade? One is because their is freedom in America, two is because their is opportunity.. DURRRRRRRR......