I believe that the system that is being spoken of is imperialism.
Imperialism is a nations desire to claim territory through economic control through both diplomatic and violent tactics. Although militarism has a very similar definition, it only relies on military control and not any diplomatic influence.
I hope this is what you’re looking for :)
The treaty of versailles caused WWII.
The world war 2 is the answer I think not sure
The answer is "Anyone from the Muslim community can interpret the Qur’an and laws and lead the daily prayers."
Sunnis usually practice reading and following the Qur'an. They practice what the Qur'an has taught them and incorporate this into their daily lives.