In the days after Pearl Harbor, my father who was a temporary postal worker at the time, stamped innumerable letters to deceased GIs, sailors and Marines stationed at Pearl Harbor, "undeliverable".
This is a real war, and real people die. Unfortunately, neither the present nor the previous administration has chosen to treat it like one.
There's no difference between a soldier who dies in Afghanistan and one who died on Okinawa. In both cases, the other side had similar plans for us. The only choice is whether we call that enemy an enemy and get them by the neck and choke the life out of them or not.
There's nothing that can be said to bring back the dead. All you can do is remember them with the respect that is their due.