 Former South African President Nelson Mandela criticized Zimbabwe's President Robert Mugabe and labeled him as a "tragic failure of leadership." Mandela expressed his sadness over the political and economic chaos that now rocks South Africa's biggest neighbor to its north west .
<clarity>  Former South African President Nelson Mandela criticized Zimbabwe's President Robert Mugabe and labeled him as a "tragic failure of leadership." Mandela expressed his sadness over the political and economic chaos that now rocks South Africa's biggest neighbor to its north west .
 Former South African President Nelson Mandela criticized Zimbabwe's President Robert Mugabe and labeled him as a "tragic failure of leadership." Mandela expressed his sadness over the political and economic chaos that now rocks South Africa's biggest neighbor , to its north-west .