An interesting point. Religion is a creation of human beings and is used as a means to control other people. The true source of war is not religion itself (that is a tool used to control people as I said). The true source is human nature which will use any means at it's disposal for destruction in certain circumstances.
Every opinion is respectable, but the reality is contradictory
The dictator trains his troops using religion.
The soldier blindly believe that is true and is dispuestona die.