Soldiers carrying deadly weapons are a thing of the past. Now, the only weapons the military utilizes are computers and high-tech electronics. Instead of using soldiers to fight for our country, the government chooses technology and electronics experts. These experts find ways to hack into enemy systems shutting down their communication devices as well as power and other necessities. No more battlefields, all fighting is done through electronic devices.
See http://www.af.mil/news/airman/0996/info.htm