The Balkan Wars: The Dress Rehearsal for World War I

In the early stages of their independence, these Balkan countries had mostly been willing to take direction from the great powers. But now they're becoming bolder and emboldened by the obvious decline of the Ottoman Empire. And they'll use the same excuses as the great powers do, you know, in the name of protecting Christians. Serbia, Bulgaria, and Greece will all send money, weapons, and agents into Ottoman Turkish lands to stir up resistance.