Because that’s what choose what the believed and how they lived there life’s from day to day
Creating a defensive buffer
To make sure that we don’t repeat history
Answer:
Some people believe it was man-made but there is no proof if it was or was not (i think it is man-made). It could be because the world is getting over-populated so this could be a way to wipe some people out.
The Union military strategy that was used was the Anaconda Plan in which the Union would blockade all ports and entrances to the enemy so that they couldn't get supplies. The military would also chase the army to wear them out.
