Julian, the military can be the best damn thing that happens to a person. Keep it to yourself until you know the cat's background.
Case in point: when I went into the Marines, I was a pool-hall screwup, a dropout (GED) mullet-rocker whose prized possessions were a rusted-out Chevelle and a juvie record a mile long. I went home after Boot and found that I had nothing in common with any of my friends. There were a lot of awkward silences when we were hanging out and I hated every part of it.
Fast forward ten years. Of my three amigos, one of them is dead, one's been in and out of jail, and one's living in a trailer married to a 200-lb. woman he hates and punching out sawblades eight hours a day for his dad. I hated not being "one of the guys" when I got back after Boot. Now, I am SO F---ING GLAD I'm not one of them.
Hands down, the Corps was the best thing that happened to me. It paid for college, (and college was a breeze after the Marines!) and it taught me discipline, strength, confidence, and accountability -- all of which are DJ characteristics.