Check out The U.S. Army Signal Corps at this link:
http://en.wikipedia.org/wiki/Signal_...d_States_Army)
I think you will like that page. I worked with them too. They are absolutely vital to the successful operation of the military. The job they do of establishing, maintaining and co-ordinating all of the assets of the "Net" is amazing. Add in their ability to co-ordinate with the other Armed Forces of the world too. Amazing!
The modern technological era has benefited them greatly.