Only does in death does duty end

It is the 43'rd Millenium. Lord Guilliman has defeated the Legions of Nurgle and reunited the worlds lost in the Eye of Terror. For the first time in 12,000 years, there is stability. But not peace. The ever war-hungry Imperium of Man seeks a new opponent to battle, setting their eyes on the expanding Tau Empire. For even in the 43'rd Millenium, there is only war.