Because of the manipulation of the election by the communist
state, USSR wanted to create satellite states wanted in order to protect them
from invasion. Soviet Union had conquered Eastern Europe, however, these satellite states tried to fight against the Soviet Union
The Wilmot Proviso pointed to trouble ahead in the debate over the expansion of slavery.
In 1846, Congressman David Wilmot of Pennsylvania introduced the proviso as an amendment to an appropriations bill in connection with the peace treaty being negotiated with Mexico. His amendment stipulated that any territory gained from Mexico would be free, not allowing slavery. Wilmot's amendment passed in the House of Representatives, but was unable to get approval in the Senate. The high-intensity debate over slavery and the expansion of slavery was evidenced by how things went with the "Wilmot Proviso."
-Water ways were major improvements to the US to help w/ transportation.
-steam engines helped by allowing railroads to be built and transport items
-this allowed more jobs to be useful for the US to grow