Russia’s planned big-ticket arms sales in Africa are expected to take a hit as a result of its full-scale invasion of Ukraine, U.S. defense and intelligence officials told Foreign Policy, depriving the Kremlin of a major revenue source as the five-month war continues to devolve into a bitter stalemate. The Defense Department and U.S. intelligence officials believe that Russia’s severe losses of high-end equipment in Ukraine, including hundreds of tanks and helicopters disabled by American- and European-provided shoulder-fired rockets, will begin to cause significant slowdowns in the Kremlin’s arms deliveries into Africa, which could give inroads to Russia’s competitors, such...