It symbolize the political and economic division between the democratic west and the communist east.
Overconfidence from the previous confederate wins. He also did not have many options. He believed ordering Pickett's Charge would lead to a major victory on his part, due to his prior luck.
the 36°30' line, except for Missouri
The correct answer is that Missouri's push for statehood threatened to upset the balance between slave states and free states.
Missouri's desire to entire the Union and on what side prompted the question of how to handle new states as they enter and the delicate balance between the two sides.