Answer:
The alliance system
Explanation:
German government's guarantee to offer aid to Austria-Hungary, and Russia's danger to counter if Austria-Hungary attacked Serbia made the alliance together framework and instrument for animosity. As proven by the evidence, the hostility between certain powers was uncontrollable therefore causing the outbreak of WW1.
They did not try to stop it due, to already bad relations with the soviets, plus if you look at a map of divided Germany you can see that they were deep into the soviets territory. <span />
Answer:
give more points. I would write :)
Very long story short, farming and sugar, as well as a port to china, east india and asia. and the islands were a prime place for a navel base.