Yes, but who controls the guns?  
In South Africa now the question relates not so much to the army (an old age home for "struggle veterans") but to the various arms of the police.  It is no surprise that some of the political killings in KZN have been by people wearing police uniforms.
At the moment the answer still seems to be Zuma, and court judgements flow off the back of the cops like water off a duck.
The question is important for anyone who has looked at African history.