Well they were all undeclared acts of war which resulted in the Country not having time to gather their army to defend themselves.
The trend towards densely populated urban centers begun in 1800's continued into the 1900's. Man's development of urban centers was a major step away from what seemed to be nature's way of living: on farms and sparsely placed homesteads. Industrial production required hundreds of thousands of workers and, especially in the second industrial revolution, scientists. The urban centers that emerged during this period, such as Paris, London, and Berlin, were quickly changing the ratios of population from rural to urban Berlin's population, for example, went from 66% rural in 1871 to almost 66% urban before the first World War (see "The Second Industrial Revolution").
Answer:
Three advantages the Union had over the Conderates:
- More population: The union had around 18.5 people, while the Confederacy had around 8.5 million. A higher population meant not only more soldiers, but also a bigger economy.
- An industrial economy: the Union was industrializing very fast, and many railways were being built. The Confederacy, on the other had, was an agrarian economy. This meant that the Union could put some of the industry to work for the army.
- Better economy: the Union simply had a better economy than the Confederacy: it was richer. This meant that the Union could sustain the war effort for a longer period of time.