De Beers created demand for diamonds in the US through marketing campaigns. In Africa, militias took control of diamond mines, forcing locals into hard labor and killing many. The Kimberley Process was established in 2000 to certify conflict-free diamonds, requiring tamper-proof containers and banning imports from non-member nations. However, some criticize that it does not truly stop conflict diamond mining or help people, as diamonds can still be sold illegally. De Beers is responsible for benefiting from conflict diamonds for over a decade before addressing the issue, though it acted legally. Ethics and consumer demand now favor conflict-free diamonds.