Shooting down Russia's Su-24M bomber jet while in Syrian airspace is an aggressive act that is being regarded an act of war under international law, legal expert Alexander Mercouris told Radio Sputnik on Tuesday.
"If the aircraft was in Syrian airspace, then in international legal terms it is an act of war, because Turkey would have invaded Syrian airspace, and shot down an aircraft within Syria, that was operating with the consent of the Syrian government," Mercouris told Radio Sputnik.
"That would be a most aggressive step," said Mercouris.
"This is in effect the Turks diving for cover," said the legal expert.
Though Turkey can expect ritual expressions of public support from NATO allies, concerns will be expressed behind the scenes about Turkey's increasingly aggressive stance.
"There is already concern about Mr Erdogan, about his policies, in many countries, and I think this will reinforce them."