Sadly the Blue Belles of the Ball are misguided....first off, you're more liable to be dead in a blue uniform than a gray or butternut one. Least those colors blend into things. Second you're bound to get a commander who can't speak English and who has been hired from the docks of some overcrowded slum filled northern city like New York or Boston or Filthadelphia!
So you know they have no allegiance to the Union cause and them and everyone in the regiment will run at the sight of a mad chicken, let alone that of Forrest or Jackson! 
Third you ever taste Yankee liquor, what the hell is in it?? Lemme look at this bottle....formaldehyde!! That'll kill any good ol' Southern boy, but hey, guess the Blue Belles needs some way to straighten their spines and have some courage! Also you ever tasted Yankee food, yeah not yer Momma or Grandma's home cookin', can assure you that!! You notice they are always runnin' to the bathroom... 
More of them in line there than in battle! Fourth, battles you can't win?? Floyd, check 'em books, see how many Blue Bellies died this month.....uh huh....I see, a ton!! Now ya, how many battles did Marse Lee lose.....uh huh, I see, none!! Yup, sounds 'bout right!! Fifth, we ain't led by Jefferson Davis this time, so we're a wee bit more organized!! Oh and lastly, y'all know you gotta email yer Chief of the Armies for a transfer....right.....somethin' tells me, um, he ain't gonna approve...okay!
So best you don't believe these Yankee lies....