Prior to the year 2000, retired military dogs would generally be euthanized. That has since changed and you can now adopt a retired military working dog. Military dogs are retiring all the time and they deserve a great home after a lifetime of service to their country. Many of these dogs have done combat tours in Iraq and Afghanistan. Here are two links that take you through the process step by step.
http://militaryworkingdogadoptions.com/index.html http://www.lackland.af.mil/units/341stmwd/index.asp