Let's see: small population, mostly pacifists, huge land area, vast natural resources including oil, coal, iron, etc..., no military to speak of, no natural barriers to an invasion, unfriendly behaviour lately, and lots more.
Let's Roll!
Not a half-bad idea, you know. Except that we don't want the part of that territory that begins with "Q" - most of the natives smell badly, and they have a sour disposition.