Carl-
My grandfather agonized over his two grandsons who were in SE Asia in the late 60's early 70's. I cherished the letters I got from home, but more then the rest, the 'one' I got from my grandfather was read over and over, and I still have it in my reloading bench drawer. About halfway through my overseas tour I got his letter that started out, "Dear Jeff, I just signed my name to a check and figured if I were well enough to do that, then I needed to be writing to my grandsons". He was never well enough to do it again until after I came home. I was the last to come home and he died 8 months later, but is still cherished.
My prayer requests Holy Spirit protection for your grandson and his mates, and the Lord keep you healthy that you may flood him with 'letters from home' and be there for him to come home to. It for sure will make his time go faster and God Speed him home, safe and sound.
Regards,
Sweetwater