Which strategies were used by the US to end the US Civil War?

Towards the end of the US Civil War, the United States employed two main strategies for bringing it to the quickest means possible. One strategy was "total war " often called "scorched earth policy". The idea in that was to make the South unable to have the resources to continue fighting.

The other strategy was the use of the siege. In places where the Union forces could simply not capture Southern strongholds such as Vicksburg and Richmond, the Union army surrounded these places and cut off their means of supply in rder for a surrender to be had.