Answer: rebelyell

AnswerCrossword Clue
REBELYELL

Civil War cry

REBELYELL

Civil War holler

REBELYELL

Long, shrill battle cry

REBELYELL
Shout from a Confederate soldier
REBELYELL
Battle reenactor's cry, perhaps
REBELYELLBattle cry of 1861.
REBELYELLC.S.A. cheer
REBELYELLWar cry of the '60s
REBELYELLSound from a Confederate soldier