Ha, yeah, you spelled Niccolo di Bernardo dei Machiavelli's name right... as to the rest?
I had a feeling you were referencing The Prince, but that really isn't anything to do with military tactics, other than pointing out that military means can be used to obtain certain goals. But there are a few other things to realize with Il Principe, or rather, some other theories that could colour the impression that might be had of it. Il Principe is a fair departure from most of Machiavelli's other works, in fact, such an extreme departure (in cases diametrically opposed to his previous works) that it is sometimes thought to be more a satire, and to be read as intending the exact opposite of it's literal statements, as a veiled attack on the brutal methods employed by Cesare Borgia, his father Pope Alexander Sextus (Rodrigo Borgia), and the way that the ruling family of Florence (his home), the Medici, had been ousted. This is further supported by the choice of written language ("common" vernacular Italian, rather than the more expected Latin), the fact that it was surreptitiously circulated during Pope Alexanders time, and only publicly published five years after Machaivelli died, with the permission of one of Alexander's successors, Pope Clement VII, Giulio Medici.
That said, the common belief for the text is that it was essentially a "job application" sent to Lorenzo de Medici (although he is thought to have never read it, due to a mistrust of Machiavelli's very pro-republic ideals... another idea that goes against The Prince), and deals primarily with the ruling of subjects, ranging from the differing ways that one can come to power, how to maintain it, the best way to be seen by your subjects, and so on, with the overall theme of a type of "ends justify the means", although the potential pitfalls are mentioned with each path laid out. A good example of this pragmatic approach to ruling people comes when he tackles the question of whether it is better to be feared or loved... in essence, it's better to be both, but if you can only be one, be feared.
So while it's a very interesting read, and has many good ideas that can help in the understanding of power plays and how to be a leader (no matter which way you read it), it really has nothing in there about military tactics. But if we're going to take this form of tactics (one that I'd recommend for any in a teaching position), you could also look at Robert Greene's 48 Laws of Power for interesting accounts and lessons in a similar field.
