Good book. war game rules at different scales that are compatible with OSR or b/x style games. well thought out, detailed to a useful level for simulating battles ranging from the scale where we are just barely beyond individual soldiers to much more complicated things. The mechanics for the different scales line up properly so by comparison it does seem more like zooming in/out than changing rulesets.

Phenomenal rules for playing out epic battles as a capstone to a campaign. Very well thought out and integrates very well into the base ACKs game as well as a great standalone wargame!

Autarch has created a lens with D@W. This finely crafted piece allows you to view mass combat within your game. It is up to you to focus the lens, choosing when to pull back and see the whole of a war campaign and when to zoom into a single battle. The rules of D@W work seamlessly, allowing a group to flow back and forth between both rule sets as the story of the game and their interest demands.

While you can buy the D@W books separately, if you have even the slightest interest in Battles, I would highly recommend buying the Complete Set. This set comes with Campaigns, Battles, the battlemap PDF (which I printed out and looks gorgeous), and a token set.