According to some, Longstreet advised Lee before the battle of Gettysburg to maneuver the army in between the Northern army and Washington. This would force Meade to use offensive tactics and Lee defensive. I am wondering whether such a move would have been practical. For one thing, there was a sizeable number of troops guarding Washington (anyone know how many?). If Lee did this he would have Meade in front of him and a smaller enemy force to his rear. Where would his line of supply be, and where would his line of retreat be? I feel like it made more sense that since the ANV had defeated the Union army 3 times (Seven days, Chancellorsville, Fredericksburg ) and drew once (Antietam) and since it was closer in numerical strength to them in this campaign, that Lee should seek out and defeat Meade (which he tried to do). I feel like this was a sounder strategy, no?