Introduction
With this essay I want to provide a summary of why oil was the main cause of the First World War (1914-1918), which could be also called the First World War for oil, and also compare this oil war with the oil wars of 2014 one hundred years later. The main alliances of WW1 were England, France and Russia on one side, known as the "allies", and Germany, Austro-Hungary and Italy on the other side, known as the “central powers”. See the following, very rough, map.
