AROUND a million people in Burkina Faso are living under suffocating blockades imposed by jihadist groups on dozens of towns and villages – a tool of war that is destroying local economies and leading to mass hunger and deaths from treatable diseases. Insurgents have used siege tactics for several years against communities they accuse of supporting government forces, but the number of blockades has increased since a junta seized power from different military leaders late last year. The new junta has ramped up military operations and enrolled tens of thousands of civilians into a nationwide anti-jihadist volunteer force. Jihadist groups…