APO - Army/Air Post Office.
FPO Navy/Marine Post Office.
We West Coasters get a postage cost break shipping FPO because it goes out of San Francisco. East Coasters get a postage price break shipping APO because it goes out of New York.
Oh, that's cool that the Marine packages go out of San Francisco.
That means the package I sent the Marine outside Baghdad may well have made it by Christmas.
:-)
So far the family aren't trusting me with the FPO and so I give them the packages all ready to go and the postage. All they have to do is address the package and finish filling in the customs form.
I think after Christmas they may be ready to let me mail directly. Daddy Warbucks wants to send a whole lot of stuff and I would like a nice chunk to go to our local Marine.