The Black Sea and Aegean Sea (Hopefully this is correct!)
The first step was the development of Anaconda plan, which aims to set up a naval blockade of the Atlantic and Gulf of Mexico, and to transport around 60,000 Union troops. This will enable them to cut off all trade and they can put hold to all forts and town along the way. However, the plan was rejected and was never put into action due to it being passive and slow to implement. With the aim to end the war quickly, Anaconda plan was revisited as a 3rd step. Wherein they employ the general framework of the plant but added combat to play on the screen. The general idea of the plan still contributes to put an end of the Civil War.
I think because he says it would help them and give them more supplies.
