UN Peacekeepers

AlJazeera notes that only a few thousand of their peacekeepers are being withdrawn from central Africa:

The partial withdrawal, which will coincide with the 50th anniversary of the DRC's independence from Belgium, is far smaller than the DRC government requested.

Congolese officials call the deployment a violation of their sovereignty. Joseph Kabila, the DRC's president, has asked for a complete withdrawal of the roughly 17,000 peacekeepers ahead of presidential elections in August 2011.

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What does this have to do with Mugabe? Wikipedia's article on the 1998 war notes Mugabe sent troops to back Kabila

(note: Joseph took over in 2001 after his father was assasinated)

this 2000 article in the NYTimes gives some more background for the war.
Mugabe and his generals were getting rich on the spoils.