In a marine environment, lost at sea or burial at sea, in both instances bodies go though a recycling process by the marine environment. So those lost overboar

In a marine environment, lost at sea or burial at sea, in both instances bodies go though a recycling process by the marine environment. So those lost overboard I don't think there would be much hope for, but those "entombed" in their vessels, if the ship were brought up, then yeah the Navy most likely would try to ID them. I think for civilian losses most often they are left undisturbed in their resting place.