According to Commander of US Africa Command, General Carter F. Ham, the alliance between the Boko Haram sect and other groups around the word has increased the sect's strength to export violence. The commander made the remarks yesterday while presenting a lecture at the National Defence College, Abuja.According to Commander of US Africa Command, General Carter F. Ham, the alliance between the Boko Haram sect and other groups around the word has increased the sect's strength to export violence. The commander made the remarks yesterday while presenting a lecture at the National Defence College, Abuja.