The main reason why the early battles of the Civil War favored the South is because the South was technically fighting a defensive war--meaning that the North had to make the moves and troop plans that brought them into southern territory, which allowed the South to prepare better.
Incomplete question. I inferred you are referring to the conditions in Andersonville prison after the Union Blockade.
Explanation:
Historical sources confirm that indeed the Union Blockade affected the supply of basic necessities in the city of Andersonville in the state of Georgia which was part of the Confederate States.
The main reason for the Union Blockade was to restrict the trading activities in the Confederate States. However, since Andersonville prison according to some sources had nearly 45,000 prisoners they were <em>unable to buy food supplies to feed those in the prison; causing most to die of starvation.</em>
The Executive branch must receive approval from "the Senate" when appointing heads of executive departments, ambassadors, and Federal Court Judges, since this is one of the most important examples of the system of "checks and balances" that exists in the US.