Government in the past have experimented with chemical stimulants on soldiers to increase their stamina and feeling of well being/invincibility on the battlefield. This practice was considered immoral and stopped being practiced openly.

An alternative was needed and virtual reality games have become the new means of psychologically preparing the new warrior class. A large portion of the military no longer depends on direct human interaction but rather on remote controlled scenarios. Killing is no longer an in your face affair but rather a cold distant, no need to get your hands dirty undertaking.

This is the brave new world were the horror and devastation of war have been sterilized. People have been conditioned to no longer be shocked or horrified by violence has seen on the TV. Virtual reality games has taken this conditioning to the next level for a portion of the population. This physically removing one from the actual devastation is the seed that will come back and bite us in the ass, just as we see light of a better possible world.