Tribalism

['traɪbəlɪz(ə)m] or ['traɪbəlɪzəm]

(noun.) the beliefs of a tribal society.

(noun.) the state of living together in tribes.

Typed by Justine--From WordNet

(n.) The state of existing in tribes; also, tribal feeling; tribal prejudice or exclusiveness; tribal peculiarities or characteristics.

Typed by Laverne