because of slavery and also Industry vs. Farming and States' Rights
The main goal of Manifest Destiny was "<span>A.) to expand America's borders ," since this mentality held that the United States was "destined to expand from coast to coast. </span>
In the October of 1962 the U.S. had over 3,500 Nuclear Warheads & the U.S. had also launched over 1,300 Bomber carrying a total of 2,962 Nuclear Warheads (AKA Weapons). I hoped this helped you :)
