What caused WWI, and Who's to blame?

What Caused World War  I, and Who Was to Blame?

A: Alliance System

Germany loosing all  allies.

Russia and France; two front war vs. Germany.

GB defending France.

A-H w/ Germany still 

EVERYONE-  wants to be all up in the Balkans

Serbia most powerful;other balkan nations want to be part of Serbia

B: Colonial Rivalry

Rivalry within Africa for "choice" of which colonies they would be ruling. 

Navies necessary in order to keep control of their colonies. 

Fights over boarders, land,etc

also colonies within the Balkans 

C: Naval Race

Germany says it needs a bigger army in order to protect themselves from GB incase. 

GB is an Island Nation, with many colonies across the ocean, they NEED their navy.

Russia would like to have access to the sea in order to have a Navy NOT bottled up in the BlackSea.

Dreadnought. 

D: Economic Rivalry

A-H limits the Serb's from getting pigs across

germany seeks to gain the upper hand

E: Russia Supported Serbia

Agreed to help them fight off AH, although they had originally declined. 

F: Germany Backing Austria at Crucial 

(?) 

G: Mobilization Plans

russia plans to mobilize troops when germany heads off to attack France. 

Britain will help defend france if need me, 

AH helps no one

Serbs fight eachother

and agains AH

H: A "Tragedy of Miscalculation"

Germany did not expect france to be ready or for them to miss Paris, and they also did not understand that russia would be ready and therefore germany got the two front attack