The answer is that the union is most likly to be better this is how they won the war
1) They would first blockade the confeterancy
2) Next they would keep supplies from reaching the Confederacy and prevent the South from exporting its cotton crop. Second, the North would seek to gain control of the Mississippi River.
3) Finnally they would capture Ritchmond Verginia and make it their capital
Although this war last for many years, this was a long prosses to do and with the Confederancy attacking it took even longer for the union to win but in the end they did.
The plan was made by the name General Winfield Scott he was the leader of the Union durring the Cival War
When the railroad arrived from the north it immediately took up rapid transport of goods and passengers such as had previously come in along the Santa Fe Trail, fueling a new prosperity and growth in the Territory.