Blood Feud

"In the Empire of the Rising Sun, battlefield commanders settle their disputes and trade their honor by conducting elaborate wargames, such as the one you are bout to interrupt. After all, we could use a better understanding of Imperial tactics and military traditions. Together, your opponents here may pose a threat, but their tradition dictates that such duels must never be interrupted. So why not let the venerable Commander Shinzo and his wayward protégé Kenji wear each other down before you send them both packing?"

- Mission briefing

Blood Feud is the second main challenge in the Commander's Challenge.

Background
The FutureTech Commander interrupts a wargame between Kenji Tenzai and Shinzo Nagama in order to obtain more information about Imperial military tactics and traditions.

Overview
Before attacking, Kenji and Shinzo will fight each other and ignore you. If you attack either one of them, they will stop fighting and ally against you.