The union didn't use turtles as their primary source of food.
Divide and conquer
Anaconda plan
it was the union's strategy to surround and squeeze the confederacy -novanet
Anaconda Plan
The new strategy was based on total war on the Confederacy.
The Union's strategy of simultaneous advances had the assumption that the Confederacy could not meet every invasion the Union created effectively. This was due to the disparity in the number of troops the South had in comparison to the North.
The south didn't win the Civil War. It was the North (The Union) who beat the South (The Confederacy)
The Anaconda Plan - initially rejected for being too slow. In fact, it was a very sound idea, and the Union eventually conducted a strategy that was very like it.
It allowed the union to take control of the Mississippi River.
Narrowed down to the basics, each side had a grand strategy. For the North, they had to use their military power to crush the rebellion. In the South the grand strategy was to make it costly in lives and money to continue fighting the South. The Confederacy's grand strategy centered around defense.The North's based on offensive.
The main goal of the Union army in the east was to not be defeated by the Confederacy. This was the main goal of the entire Union Army from 1861 to 1864.
It was part of the Confederacy - and therefore not the Union.