<span>Firstly, the American side was losing hope and began to side with the British. The Americans lost hope in gaining independence. Congress used this as a way to trick the British also.</span>
Stress that between 1846 and 1848 the United States gained more than one million square miles of territory. Be sure to note that the United States acquired Oregon Country peacefully through a treaty with Britain, while it took a war with Mexico to obtain the lands in the Southwest.