It's abolishment was a big mistake. Are there any alternatives to Re-Institutionalizing the Caliphate? And in modern-day system, is there a solution to avoid the Caliphate being tied to the country where the Caliphate resides in? What consequences would this have, and could the Muslim countries agree upon a country where the Caliphate resides in. What would happen, if the Caliphate is being re-Institutionalized unilaterally?