As a TurkishTurk, my guess would be historical and ethnic links. I hear the phrase ''We are 2 different states but we are the same nation'' all the time in social media, kindakind of like China and Taiwan. OnlyThe only difference is that both Azerbaijan and Turkey doesn't have very differentsimilar ideologies.
What did you even expect? Who can Turkey trust, not only in that area, but in the whole world? Ties with the USA isn'taren't getting any better since the Brunson crisis, Russia is a very strategic superpower that only looklooks for it'sits interests, Justice and Development Party (AKP) always talks trash about EU to gain support from the conservatistsconservatives and ultra-right... Turkey's
Turkey's only eternal friends are Pakistan and Azerbaijan.