Or, more to the point, the Austro-Hungarian parliament, who was looking for a reason to attack Serbia, and had been for more than two years. They re-branded Princip as "Serbian military" - which he wasn't, in any way shape or form - which then they used as pretext to attack Serbia, and start the war. The bullet helped. But only because the rest of the machine had been waiting for a starter's pistol for years...
And this is where the difference of opinion comes into play, mostly. Some believe that there is enough dissatisfaction for there to be change, some don't. In the current political climate I cannot in good faith rule out ANYTHING that doesn't go against the laws of physics.But only because the rest of the machine had been waiting for a starter's pistol for years...