I came across this website today. Whether you agree with the war or not, I think we all agree we need to support our troops.
Anyway, you can "adopt" a service member, meaning you send a care package once a month and promise to write (I forget how often - like once a week or less than that). Or, you can just sign up to be a penpal.
I know so many people here are so caring, and I thought this might be a great way to help out.