I understand Turkey took a blind eye to Al Qaeda, HAMAS, Hizbollah, Islamic Jihad and other ME terrorist groups transiting the country on their way to conduct jihadist operations in Bosnia. Source: S. Huntington and The Clash of Civilizations.
And they are in line to become part of the EU?
The Bosnians, adopting Islam and forsaking Christianity, because of a unique set of politico-theological-just-plain-contrariness-balkan set of historical reasons, were the Turks' favorites. They were (and are) an attractive people, which was always enough to get Johnny Turk excited.
The Bosnians were the brains of the Turkish outfit, the feral Albanians, many of whom also turned apostate, were (those that didn't flee) did the dirty work among the South Slavs.
Guess some things never change. I guess the Turks have their own version of Aztlán, planning on a Muslim reconquest of Balkan Europe.