What do you think of a EU like system where clan states cooperate with each other but maintain autonomy from one another?Ideally as a Nation with a dominant ethnicity, language, culture and religion, the logical option would be central governance in a unitary state like Turkey, Japan, Austria or France. However, because of a lack of political maturity, low-trust and the aftermath of a dictatorship, the next best thing would be federalism like Germany.
Unfortunately, all political systems will fail until the root causes are addressed and genuine reconciliation commences.