Look....this is nothing more than a clear example of how inexperienced Russia is at this warfare business........they were ordinary in Afghanistan, they actually made an inconclusive mess in Chechnya. ...and still do to some extent, and had a brief David v Goliath effort in Georgia, no result...
No...it's a mess whereby Sunni kills Shia and visa versa..... simple. This has been happening for ever, but on a more industrial scale since the Iran-Iraq war in the early 80's...... we get dragged in to help or hinder, depending on your point of view.
It was a very sensitive region during the cold war....Turkey wanted protection...it's long sea and land borders with a huge tranche of the former Soviet bloc.....Bulgaria, Romania, Soviet Union,..thousands of miles of border ( land and sea)...meant that if not protected, Moscow could threaten...
Yes...that was the origin of the NATO membership.....sorry....semantics.
In fact it faced off across land borders and the Black Sea with the Soviet bloc....strategic.
Yes, being in an isolated position, NATO membership gave them security from the iron curtain gang, right through the cold war era.......no nukes were ever positioned in Turkey.