Surprised at some of the comments here. Some facts to consider: 1. Turkey routinely enters sovereign Greek airspace, despite repeatedly being asked not to. The Greeks don't shoot them down, because that would not be a proportional response... just like shooting down a Russian aircraft that is clearly not heading north into Turkish airspace, but is instead briefly crossing a small tit of airspace, is not a proportional response 2. The timings and reported geometry of the intercept and shootdown are revealing. By the Turks' own admission, the Su-24 was in Turkish airspace for 17 seconds, but it had been back in Syrian airspace for 40 seconds when it was hit and downed. You don't have to be a genius to work out that in a rear-aspect AIM-9 engagement, the shot was taken when the Fencer's airspace incursion was already over, and meant that the F-16s were probably in Syrian airspace when they engaged. That makes the Turks' response a punishment for the incursion, not an attempt to prevent it, and that constitutes an aggression that we all could really do without. Further, if you look at the data that the Turks have released, it's clear that the Fencer was pointing at the border for less a minute, which makes their claims of 10 warnings in five minutes sound suspect 3. The idea that Russia is a de facto supporter of ISIS because it is targeting the Turkmenistans, FSA and other rebel groups in the north is as much of a nonsense as the idea that the groups the West is supporting are 'moderate'. These so-called moderates are the same ones who shoot pilots in parachutes and behead children for being the wrong type of Muslim.