How an intercepted drone escalated Mali-Algeria tensions / Mali rebels free Spanish man abducted by bandits in Algeria hoping to sell him to IS group / Mali's army able to improve military potential owing to Russia -- envoy / Drone strikes by Mali's military regime kills 8 Tuareg leaders in the country's north / Drone strikes by Mali's military regime kill 8 Tuareg leaders in the country's north / Mali's junta escalates fight with mining groups over profit share / Tuareg rebels in Mali receive support from Ukraine -- representative / Mali: Militants attack police school near airport -- army