Not possible.
First, as RV Pundit has noted on another thread, the Pokot would be fools to give up their weapons while their enemies retained theirs. They know that, which is why past efforts to disarm them have failed.
Second, in this day and age, Mt. Elgon and Wagalla type of operations are not realistic options; even Kenyans are wide awake these days, and it is doubtful that they would find that sort of thing acceptable. I certainly hope so.
So what is left is a "war of attrition", against a "foe" who is determined very determined, who has a lot at stake, and who knows his territory better than the people he is fighting. In such circumstances the best KDF can hope for is some short-term "victories", but it is inevitable that it must lose the war.
As has been pointed out, it is not that the Pokot and fundamentally violent trouble-makers; they are simply continuing their way of life but with guns instead of spears and bow-and-arrows. State violence is not the way to bring about the necessary transition. Unfortunately, the red-eyed fellow and his friends are unable to see that.
A huge problem with Kenya to date is that a huge section of the country---from Wajir to Kapenguria---has traditionally been neglected because there has been nothing to "eat" there. For whatever reason, the belief has been (and still is) that the situation can continue indefinitely. I don't see how. And it terms of future "headaches", the Turkana, with their oil and water, are the next big one. So far nobody seems to be making an effort to avoid what could be a very nasty situation.