We should clarify that Corporate War and Civil War per se are different things. Samura pews on Kishiro, but not openly (or they just hire Hogosha and Alliance to get rid of both Kishiro and GMG) - that is a corporate war. If there were two KNF (or inlore full scale actions between KNF and Exiles) factions pewing at each other, this would be an open civil war. For now, things between Exiles and KNF are just nothing more than "incidents" between loyalists and coup forces for now.
Exiles are preparing. And others in Kusari will eventually take sides.