4, from July 28th 1914 to November 11th 1918
The enlightment basic ideology is freedom. Freedom to choose your own opinion, freedom to do what you desire, freedom to pursue something that you want, etc.
The independence itself is the embodiment of enlightnment because independence is the act of break free from a restrictive rule or establishment that previously dictate what you should and shouldn't do.
Blitzkreig a mix of armor and infantry but one giant wave like a spear