He later expressed his support for Mugabe over Smith .
Carrington chaired the Lancaster House conference in 1979 , attended by Ian Smith , Abel Muzorewa , Robert Mugabe , Joshua Nkomo , and Josiah Tongogara , which brought to an end Rhodesia 's Bush War .
Carrington later expressed Carrington 's support Robert Mugabe Mugabe Ian Smith Smith .
Carrington chaired the Lancaster House conference in 1979 , attended by Ian Smith , Abel Muzorewa , Robert Mugabe , Joshua Nkomo , and Josiah Tongogara , which brought to an end Rhodesia 's Bush War .