Hey Gurka,

I don't have any experience with D-papers... but I would stick with the plan and thank her for the t-shirts and not even mention the D-papers.

Let her come back to you and ask you if you got them... once she asks, you could say something along the lines of:

"Oh, yes, I got them, but I'm not making any important decisions until I return home from Afghanistan. Love you - Gurka"

Semper Fi,