The <em>Union</em> was confirmed by the most industrialized states in the country. This meant that the production of weapons and tools related to war logistics was controlled by them. Besides having more weapons and supplies, the <em>Union</em> also had more soldiers, as the population was considerably bigger in the north.
Railroads are a sign of development. In terms of war, they helped mobilize troops and resources along the country with relative ease in comparison to their <em>Confederate</em> counterparts. This represented a great advantage for the <em>Union</em>.
Besides having the previously mentioned advantages. The <em>Union</em> also had the naval power on their side and executed the blockade in an attempt to cut the resources from The <em>Confederacy</em>. As a response, the southern states replaced the growth of Cotton with other crops in order to have food supplies.
Are there any choices <span />
B. the dropping of the atomic weapons demonstrated the potential power of each bomb, leading the Japanese to surrender in order to protect the remaining civilian population.
The major events that led to worldwar two was that hitler had attacked poland ( or was it austria or hungary) and that sparked a war between them. I think someone from austria died a royal and that sparked it as well. The rising tension between germany and the other countries after ww1 also accounted for it.