Como e por que começou a primeira guerra mundial?

And the War Came 

by Ralph Raico

"The immediate origins of the 1914 war lie in the twisted politics of the Kingdom of Serbia.[1] In June, 1903, Serbian army officers murdered their king and queen in the palace and threw their bodies out a window, at the same time massacring various royal relations, cabinet ministers, and members of the palace guards. It was an act that horrified and disgusted many in the civilized world. The military clique replaced the pro-Austrian Obrenović dynasty with the anti-Austrian Karageorgevices. The new government pursued a pro-Russian, Pan-Slavist policy, and a network of secret societies sprang up, closely linked to the government, whose goal was the "liberation" of the Serb subjects of Austria (and Turkey), and perhaps the other South Slavs as well..."
Mais