AP Photo

The Kremlin has launched an ambitious project to restore Moscow's past glory on the African continent. Policy makers in the U.S. and Europe need to understand that it's happening -- and formulate an effective response -- before they find their own relationships with Africa changing in significant and problematic ways.

Russian President Dmitry Medvedev and more than a hundred Russian businessmen last week visited Egypt, Nigeria, Namibia and Angola on the longest tour of Africa a Russian leader has undertaken since the collapse of the Soviet Union. Unlike President Obama, who is going to Africa next week for a brief stop to talk about global warming, Mr. Medvedev and his team targeted oil, gas, diamonds and uranium. Mr. Medvedev is trying to score points before his G-8 meeting...