Zimbabwean President Robert Mugabe says no African nation has the guts to topple him, reported AP.
The state-controlled Herald newspaper quotes Mugabe as telling leaders of his party that neighboring Botswana's calls for his ouster are nothing but hot air.
Meanwhile, opposition leader Morgan Tsvangirai said Friday he will ask his party to halt talks on a unity government with Mugabe unless political detainees are released or charged by Jan. 1.
Mugabe and Tsvangirai agreed three months ago to form a unity government but negotiations have stalled over how to share Cabinet posts.
The political impasse comes amid a mounting economic and humanitarian crisis that has pushed thousands of Zimbabweans to the point of starvation and left 1,123 dead from cholera since August.