In this paper, the author elaborates the role of Mahathir as Prime Minister of Malaysia in support of the U.S war of Terror against Afghanistan in particular aim of understanding and evaluating the relation between Malaysia and U.S before and after the war of terror. How the reaction affect the internal politics in Malaysia.  Publication/Conference: 4th International Malaysian Studies Conference; 3-5 August 2004, Universiti Kebangsaan Malaysia, Bangi.  Author:  Rosyidah Muhamad.