Turkey is generally seen as the leader of the secular Islamic world, while Iran is seen as the leader Shia Islam.
While they aren't shooting enemies they aren't exactly allies either.
More interestingly, the chart shows Turkey and Iraq as enemies, while in fact Turkey and Iraqi Kurdistan have recently become quite close allies (!!) based on a oil and trade[1][2].
[1] http://online.wsj.com/articles/conflict-shows-new-closer-tur...
[2] http://www.washingtoninstitute.org/policy-analysis/view/turk...
Highly surprising! Nah, not really.
Problem is that one of the values of islam is to militarily dominate, so aside from Lebanon (and formerly Iraq), there is no example of a state with powre sharing. Even in Lebanon there is only power sharing between Christians and muslims, not between different sects of muslims. (the difference being that Christians don't see the need to exterminate muslims (just convert them, eventually), nor do muslims want to exterminate Christians, just dominate them (talking about the values of the religions here). Sunni's do want to exterminate Shi'as and vice-versa. To put it bluntly: sharia is pretty clear on the need to kill any muslim who is not the same sect as you are. But Christians/Jews can get the choice dhimma or death. So Lebanon will not blow up as easily as Iraq will)
Edit: the parent comment was edited while I was writing that. There is a lot I disagree with now, bit the biggest factual problem is the idea that Lebanon "won't blow up like Iraq" seems to ignore 2 decades of civil war in Lebanon.
You're right of course that Lebanon hasn't been very stable.
I'm trying to imagine what goals they share?
I guess Turkey probably doesn't want an Iranian-dominated Iraq (and nor does ISIS of course!), but Turkey can probably accept that to some degree provided Iraqi Kurdistan remains autonomous and provides a buffer zone. Beyond that I can't see anything they really have in common.
He has, after, said exactly that. Cost him votes, but not enough.
As I said, he's quite sympathetic with what they're doing, he's doing the same. He's just behaving like any Ottoman vasal did a mere 100 years ago. He agrees with the need for a caliphate, probably even with the method. He just disagrees on the caliph and the capital. Like any ottoman vasal, tough, he sees them as competition as well as potential allies.
Islamic Republic of Iran is a theocracy.
Every time the US threatens Iran or imposes sanctions, or funds and arms a terrible dictator in Iraq so he can bomb Iranian cities and drop poison gas on them killing hundreds of thousands of people. The theocracy steps up to the plate the only force powerful enough to stand up to the US.
Any more liberal voices get drowned out by the need for security from the US and its interests.