My cousin met his first wife while they were both serving in the Navy. They both survived their service just fine, it was a drunk driver that killed her.
I've had several friends who've joined the military, and so far, thank God, none of them have been injured in any way. However, I had another high school friend who died in a car accident when another driver went into a diabetic coma while he was driving.
Life is dangerous, period. There is no way to guarantee that a child will never lose their parent. To say that a parent who chooses a high risk occupation is abusive has to be one of the most ridiculous statements I've ever heard.