“Over the years, I’ve had many-a-veteran friend ask me to write a song for the men and women in the battlefield. Having never seen combat, I put it off for a long time,” says songwriter J.B. Beverley, the frontman of J.B. Beverley and the Wayward Drifters. “I wanted to wait until I had the right feeling . . . the right message. I’ve listened to the stories you all have shared with me . . .