When I became interested in learning about the war on a more detailed level, I tended to focus on the Army of Tennessee's campaigns, and am only now venturing into exploring the Army of Northern Virginia. It's a bit of a culture shock, to be honest. Campaigns being confined to such a relatively small area, the Confederate high command working like a well-oiled machine, Union commanders being defeated, frequent large Confederate forays into Union territory - it's quite a bit to wrap one's head around.
Can some of our Eastern theater experts please try to explain the war in that theater for people like me with a definite "Western" perspective?
What extended the warin the East, was the singular inability of the main Union army of the East the AoP, to adapt to the kind of war needed to successfully fight in pursuit of a smaller more mobile and aggressive foe, better suited for the exigencies of a war in the restricted confines of the Eastern Theatre.
In the West there was no, or, at least very little, real difference between armies and leadership of either side; there was in the East.