My suggestion is to thoroughly check out Handgunlaw.us. There's a lot of great information contained there and you can look up specific states, such as:
Florida
or
Virginia
Also, if you've got an iPhone or Android, check out the following two apps: Gun Conceal and Legal Heat. Both are excellent resources for being on the road.
What Service are you with? I'm - currently - AD USAF, but set to retire soon. Regardless the Branch, thank you for your Service!
Arkansas Concealed Carry Instructor #12-751