Karl Wagner is a disgruntled middle-aged instructor at the Bundeswehr Command and Staff College. He finds himself concerned about the direction which the German nation is headed in—just as he is killed by a terrorist attack. Only to awaken and find himself reborn as an infant, Bruno von Zehntner, the youngest son of a noble family renowned for its part in the German war industry a few years after the founding of the German Empire. Bruno, as he is now known, desires to rewrite history and ensure the German Empire emerges victorious in the coming century. And in doing so, finds himself entrenched in a world filled with Blood and Iron!
The Bosnian Crisis had begun almost immediately after the Ottoman Empire entered a state of revolution. Revolution that lasted less than thirty days, mind you, before the Sultan was forced to concede to the demands of the Young Turk Movement and allow for the restoration of the Empire's Constitution, and to an extent a new election for Parliament.
As a result of this, the Balkans were thrown into turmoil, with several nations either directly under the control of other Ottoman Empire as imperial territories, or vassal states such as Bulgaria using this as a chance to gain their much-desired independence.
And, of course, the Habsburgs used this as a reason to fully annex the region known as Bosnia and Herzegovina, which had for the last few decades been under their indirect control. The moment the Austrian Army marched into the Balkans; things got chaotic very quickly.