Grab both of these books in a single click!
Kauyon - detailing the struggles between the Tau Empire and the Adeptus Astartes over the fortress world of Prefectia and Mont'ka - chronicling the Astra Militarum's vicious war of attrition with the Tau over Agrellan. Both books include a huge amount of new content and updates for the armies featured, bringing you up to date with their developments - you'll have all the new rules for the Tau releases, and full rules for the Officio Assassinorum miniatures!