The Long Patrol

The Long Patrol is a children's fantasy book written by Brian Jacques in 1997. It is the tenth book in the Redwall series. "The Long Patrol" has been translated into four different languages including Finnish, French, Italian, and Swedish.
Plot summary.
A young hare named Tammo wants to join the Long Patrol, the army of fighting hares that serves the Ruler of the mountain Salamandastron. But meanwhile Damug Warfang the rat and his evil army of cruel Rapscallions are coming.