What is available for the older set?
Frankly I have not been able to find as much for the older set as I have been able to locate for younger children, but.....
There are several different resources available for tweens and teens. Resources that cover everything from the stress of moving, changing schools, deployment, basic life changes, etc.
Below you will find several of those resources. This is by no means a comprehensive list, so please feel free to comment on resources that you have found to be valuable to your tween or teen.
There has been a film dedicated to the military brats through the decades.
Journaling and Scrapbooking ideas for the military brats can be found here.
Summer Camps are available each year for brats. The goal of these free summer camps is to bring together youth who are experiencing some stage of a deployment and the stress that goes along with it.
There are many resources available for military homeschooling families with all ages, this is one.
National Guard families also have resources available for brats: How do you recognize stress in your kids? What does a stressed infant look like? How can you tell your moody teenagers' deployment-related stress from their normal charming demeanors? The National Guard Family Program offers some helpful guidelines.
The Military Child Educational Coalition is a super resource for all school aged brats. Especially great for upcoming PCS moves which include changing schools.
Military Teens On The Move is available and also has a site for the younger set.
Overseas Brats is an organization founded in 1986. It is for U.S. citizens who have attended school overseas. It helps connect overseas high school alumni groups and also offers a discussion forum.
Many teen/youth activities are available on installations.