A Turkish F-16 fighter shoots down a Russian Sukoi-24M bomber after it crosses Turkey’s southernmost tip. Barack Obama says Turkey has a right to defend its territory and airspace. Putin calls it a ‘stab in the back delivered by accomplices of the terrorists’ and promises ‘serious conequences’. - See more at: https://www.chathamhouse.org/publications/twt/putin-s-middle-eastern-campaign#sthash.O80mKzxv.dpuf