I hope you have a great visit with your son. Tell him thanks from an old Tanker.

BTW if you know the date he returns from overseas (assuming he's coming back to your area) contact the local Patriot Guard and ask them to do a welcome home. They can meet him in the airport terminal with a bunch of cheering folks, lots of flags and thanks for his service. They might also give him a motorcycle escort back to his base or home. The PGR has a web site and local contact can be made though the web site and or e-mail. I've talked to a lot of returning troops and they appreciate the welcome home and the show of support for their sacrifices.
The above goes for ALL US troops and their families. If you know a soldier (generic term for all services) that is heading out or returning home the PGR will be happy to escort or show up to let them know they are appreciated. It's free.