In the New York Times, CJ Chivers reports that Iran has spent perhaps the last decade quietly selling bullets for use in various African wars:
…untold quantities had been supplied to governments in Guinea, Kenya, Ivory Coast and, the evidence suggests, Sudan.
From there, it traveled to many of the continent’s most volatile locales, becoming an instrument of violence in some of Africa’s ugliest wars and for brutal regimes. And while the wide redistribution within Africa may be the work of African governments, the same ammunition has also been found elsewhere, including in an insurgent arms cache in Iraq and on a ship intercepted as it headed for the Gaza Strip.
The full report is available here