In this week's Across Africa: At least 11 people are killed and dozens injured in explosions at a rally called by M23 rebels in the captured eastern Congolese city of Bukavu. Also, Ghana's defence capabilities are being boosted by a €50 million EU military package. And in Benin, fall armyworm is devastating thousands of hectares of maize, the country's main food crop. To combat this threat, a digital solution is turning smartphones into detection tools.