 As promised, the Sultan of Sulu received eastern Sabah as an honorary gift from the Sultan of Brunei, for the Tausugs'  help during the civil war (an event which traced the roots of the North Borneo dispute between Malaysia and the Philippines in the present-day).
<coherence>  As promised, the Sultan of Sulu received eastern Sabah as an honorary gift from the Sultan of Brunei, for the Tausugs'  help during the civil war (an event which traced the roots of the North Borneo dispute between Malaysia and the Philippines in the present-day).
 Sultan of Sulu received eastern Sabah as an honorary gift from the Sultan of Brunei, for the Tausugs' help during the civil war (an event which traced the roots of the North Borneo dispute between Malaysia and the Philippines in the present-day).