In The Princess Bride, there are at least two different people who aim to start a war between Florin and Guilder by assassinating the princess: Vizzini and Prince Humperdinck.
Now rulers seeking excuses to start wars with neighbouring countries is a common enough phenomenon: perhaps Humperdinck is ambitious and wishes to conquer Guilder, but needs the support of his people before he can declare war upon them. But what about Vizzini? What interest does a Sicilian have in starting a war between these two countries, and why does he take so many risks and expend so much effort in order to do so?
What was Vizzini's motive for starting a war between Florin and Guilder?
(This question was inspired by our Princess Bride movie night last night in Mos Eisley.)