The following code implements a territory as a class:

$```$py

class Territory:

$"""$A territory for a board game"""

def $\_\_$init$\_\_($self$,$ territory$\_$name: str$,$ owner: str$,$ armies: int$)$:

$"""$Initialise name, owner and armies

Preconditions: territory name is not empty; owner is not empty; armies is $>=0"""$

self.territory$\_$name $=$ territory$\_$name

self.owner $=$ owner

self.armies $=$ armies

def $\_\_$str$\_\_($self$)$:

$"""$Returns a string representation of the territory."""

return self.territory$\_$name

$```$