@Chita congrats on your test!
Okay so my Redwall lore may be a little rusty as I haven't read any of the books beyond Taggerung (which came out in 2001 I think)
Anyways, there are several main battlecries that are used. The first thing to remember is that they are regional and tribally based.
The land that most of the stories took place in is called Mossflower.
The unified call to battle for the whole region is "Eulalia" and it is mainly used by Badgers and Hares, though the Badger stronghold Salamadastron has its own named warcry as well, as does the elite fighting unit of Hares called the Long Patrol. "Salamandastron" & "Long Patrol"
Redwall Abbey, usually led by a warrior Mouse has its own warcry as well. "Redwall."
And then there's the Guossim Shrews, who's warcry evokes the leadership of their cheiftan, Log-a-Log. "Logalog"
But usually when a big war breaks out, the "Eulalia" war cry unifies the tribes together in a valiant stand to glorious battle against the vermin types.
And then...the vermin warlords often have their own warcry, usually named after themselves.
@Enigma_the_Slimy_Boi (did I get anything wrong?fact check my lore if need be because I'm going off memory. And also...my favorite RW books are Lord Brocktree, Marlfox, and Tagerrung)