The arrival of the Orks was something of a surprise to the Tau, for although they had participated in the recent fleet action, the Tau command had thought this to be a one off. Even when the Orks appeared on Tarsis Minor, Tau intelligence suggested that it may be the remnants of Ork crews from hulked or crippled warships, seeking a refuge once their ships had been destroyed.
Following defeat to the Orks the Tau knew they needed to re-take the initiative and launched a series of raids against Chaos forces still on the planet. Several were successful, if bloody, and the Death Guard elements in particular suffered heavy casualties. The Tau under Elan Ro had resecured their bases on Tarsis Minor by 1810.008M42, though they could not yet claim to have control over the whole world.