This site has the requirements listed by state, so you can see how long it takes to get a license, where to go, what you need to take, etc...
SUNSPOT CREATIONS DESIGNS
Run by a military wife who does super affordable local fresh weddings and silk weddings worldwide (She has done Germany. England, Japan, Ireland, France, and Australia, as well as thousands of wedding bouquet sets here stateside over the last 17 years. She is also a licensed wedding consultant, and legal officiant.
About.com: Military Wedding/Military Honeymoon: (http://honeymoons.about.com/cs/weddingplanning/a/militarywedding.htm?terms=black+tie+stationery)
There are several articles here, just click and read!
A huge list of Articles
They have articles for each branch, with tons of information! Just scroll down past their items..
They have several articles that are helpful, including:
Military Ceremony and Reception (http://wedding.theknot.com/real-weddings/military-weddings/articles/military-wedding-ceremony-and-reception.aspx)
Military Wedding Attire (http://wedding.theknot.com/real-weddings/military-weddings/articles/military-wedding-attire.aspx)
Military Wedding Traditions: (http://wedding.theknot.com/real-weddings/military-weddings.aspx)
Military Wedding Traditions: (http://www.weddingdetails.com/lore/military.cfm)
Military Wedding Protocol: (http://www.navywives.com/index.php/component/option,com_content/task,section/id,19/Itemid,175/)