Quote Originally Posted by abou
Uhm... I'm not sure I follow. Yes, it is a noun and in the ablative form. Force is in the genitive (crap, did I decline that wrong?). So, by the way of force. I'm not entirely sure where the problem is.

Besides, who uses late Latin?

Anyway, I can't remember my declension of vis off the top of my head. I have a feeling it is vis. Pacem via vis.
ah, ok, so you are saying nominativenoun + ablativenoun + genitivenoun - i thought it might be the case:

thus "peace by force's road".

because "by the way of" can either be "by the route of" (i.e. via as you used - though i am pretty sure golden latin did not use via as anything more than actual roads/routes) or "in the manner of", which is certainly not via.

tellos' line is a good un. brevity is always good in latin: pacem vi.