Per a letter from my brother in law's wife....
OK I found out some more information regarding sending packages for those of you who want to. Any letters or pics should be sent separately as the military is trying hard to get them to the guys ASAP to help keep morale up. Packages are taking significantly longer. Definitely cannot send any food containing pork - they actually suggest not sending any meat product at all as a few people have had to remove even beef jerky from boxes when they declared it in the box. And no porno or alcohol (bummer). The box size should be limited - I don't know the exact dimensions but I have been told shoe box size is the best.
Don't forget the WOMEN! Also, in addition to items below - think about feminine products... (something that was just brought to my attention!)