Join the VBE and have your banners displayed where veterans and the military will see them.
Every study done on the web shows the following surfing habits.
The first time on the Internet users go to Yahoo, Excite or whichever search engine happens to be recommended by their software and then type in what they have an interest in. After that most of their time is spent there. Yes they click on banners to see new sites but only if the site is of interests to them. If your banner is being shown on another veteran site then you have a chance of getting them to visit yours. If not then you are just out of luck.