My best friend is going to join the military

My best friend is going to join the U.S. military in about 4 months. He wants to be a military medic. He told me that was his long life dream (dont ask me why but that is his dream). He told me that he will come visit every 6 months, but I'm afraid that something bad is going to happen to him. I'm going to miss him very very much, now that he promised to be my lifelong friend.

Brenna Maawad