The 1800s saw the United States almost triple in size. Presidents during this time were very successful in negotiating for land with other countries. When talk failed, U.S. leaders were not afraid to go to war. Find out more in Manifest Destiny and the Journey West, a title in the Building Our Nation series. Building Our Nation is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks multimedia content. These books come alive with video, audio, weblinks, slideshows, activities, hands-on experiments, and much more.