Your question is not clear. Conceivably you want the definition of the word plan, conceivably you are concerned about some specific plan which you have not identified, and maybe you mean to ask, what is the plain answer to the civil question, although you have not told us what the civil question is, either.
The Union did not plan the Civil War. No one planned it.
The Anaconda Plan
There were mixed reviews by the North at the beginning of the Civil War that the Anaconda Plan was a viable plan. The plan was proposed by Winfield Scott, General-in-Chief.
anaconda plan
Civil War
US civil war
Yes- your question contains a fair summary of Grant's strategy, I think.
Top view at sill level
Drive out the Yanks.
yes
Andrew Johnson's group had the harshest reconstruction plan after the Civil War. This did not include any protection for people who had been slaves.
Grants plan was to give Lee's army 25,000 meals.