Afghanistan

Last week my best friend got deployed to Afghanistan.
His name is Matt, he's 19 and he's a Marine in infantry.
I've been friends with him for about 3 years now, so it's kinda different to watch him go.
He's told me absolutely everything about him and now, it's at the point where no matter how disturbing or sad or whatever somethings are, he tells me just so he can get it off his chest or just needed someone to talk to.
I've talked to him about everything, and don't feel weird telling him anything because I know that he won't think of me any differently.
We're just a whole different level of close I guess you could say.
He will be in Afghanistan for 7 months, he comes back just in time for my 18th birthday and to come see me graduate, which I am very grateful and excited for.
I saw him the night before he left, it was weird to think that I am saying goodbye to him for 7 months, I didn't really think that it was real.
I've already written him and his other friends he got deployed with some letters.
Matt says that he is expecting me to write him a letter everyday, which i already haven't been good about.
Now I'm just waiting for letters from him...
Prayers for him would be much appreciated!