I've played the game twice with this mod to get the Warlord National Armies Spirt so I can do the focus integrate the warlord armies as opposed to focus on the central armies. I still don't understand how I got it.

First game I did the prioritize internal threat, second was external. Yet I still don't understand how I gained it and maybe i missed it while fighting Japan. Can someone explain it to me how I get it so I can properly plan and prepare for an upcoming multiplayer game?