It's still a confusion but it will be cleared up, once the Kusari Update arrives in full force.
[KPT ID will be an imperial aligned ID, and currently without any sort of faction playing it.
KNI is a player project to establish and create a Republican aligned intelligence ID, once the KPT id alternative is gone and Kusari needs such tool.]
Probably the most dramatic storyline change in there, right after Kyushu invasion (already implemented), and Nagano invasion (still not quite there yet).