Missouri, and Maine both requested to become states, both wanted to be free, but Missouri ended up being slave, causing a battle known as the "burnt district" which was due to Jayhawkers of Kansas flooding into Missouri to vote pro-slave, making the polls artificially swell in support of slavery.
I believe that it was the U.S army
D. To spread the Tevolution and destory other monarchies.
Because people were loosing jobs and Machines took peoples place!
B. Strengthened power of feudalistic lords
