What is the idea of nationality and groups in pre-hispanic era in the Philippines?

I need a thesis statement and I was thinking of the idea of nationality Filipinos had in Pre-hispanic era. Because at that time, I believe that Luzon, Visayas, Mindanao and their tribes are not one, in fact, they fight each other. I don't think there's a concept of being a Filipino back then. So I was wondering what they can do for their own tribe. and what does a tribe compose off, do they have a sense of kinship, to whom? who do they consider as team...like family today or filipinos today as a team. and how do they go about protecting their team. ty :D any ideas and reactions, or thoughts will do. thank you