Answer:

rebs

Answer	Crossword Clue
REBS	C.S.A. soldiers
REBS	CSA soldiers
REBS	Civil War soldiers, familiarly

REBS	Confederate soldiers
REBS	Yanks' foes
REBS	Jeb Stuart's men, for short
REBS	Gray side
REBS	CSA troops
REBS	Confederate forces
REBS	Ole Miss jocks
REBS	Pickett's chargers

REBS	Bull Run victors
REBS	"The Red Badge of Courage" extras
REBS	Gen'l Lee's men
REBS	Old Southern fighters
REBS	Gray uniform wearers
REBS	Grays
REBS	Stonewall Jackson et al.
REBS	Lee followers

REBS	1860s Grays
REBS	Shiloh battlers
REBS	Soldiers under Lee
REBS	Southern soldiers in the Civil War
REBS	Yankee foes of the 1860s
REBS	Graycoats
REBS	Would-be Union busters
REBS	Stonewall's boys

REBS	Battle of Fredericksburg victors
REBS	Victors at Bull Run
REBS	Appomattox losers
REBS	Stonewall Jackson's soldiers
REBS	Robert E. Lee's men
REBS	1860s soldiers, for short
REBS	Yanks' opponents
REBS	Gettysburg fighters

REBS	Yankees' counterparts
REBS	Yankee foes of old
REBS	Shiloh losers
REBS	Yanks' opposition
REBS	Civil War soldiers, for short