Board Thread:Questions and Answers/@comment-4923787-20131012165847/@comment-5169980-20131113172718

Yes and no, Serb and Bulgarian were not really what we could call friendly but the [|Yugoslav irredentism] was a concept that existed.

At the a first view, the strange alliance system is crazy but at one, at the time of Bismarck, the   League of the Three Emperors  was created between Germany, Russia and Austria-Hungary. It was dissolved in part because the balkan Slavic issue prevent that Austria and Russia share alliance. In consequene, Germany choose Austria, if you change the ruling Kaiser of that time with a less anti-Russian mind, maybe Germany would saw how an alliance with Russia is better.