We had idiots in our unit tag their place of deployment, when our unit deployed and I stayed back. That's why I say thank you!

You can mentioned where he stationed. You can't mention the exact units name, dates of any kind of leave, when and where deployment is, and or basically training dates. As long as you don't add like unit name, you can say. Most people know most of the military bases as is.
However I want to say thank you for being a cautions person, there is not many out there.

Not really aloud to say. @mommygreene

Where is he stationed?