Huge areas of North America were added to the United States during the administration of President James K. Polk.

Question

A. What were these areas? (states included in each of the territories)
B. From which nations were these areas acquired?
C. How were they acquired, purchase, war, treaty, etc.? Give details here, not one word answers.

Answer 1

Henry K Polk annexed the territories of the Republic of Texas, Oregan, and the Mexican Territories held before the Mexican-American War. He collected them through said war.