system
Given the following post, respond as if you're commenting on Reddit:
human
eli5, what happens to the dead bodies in a battlefield

Humans war against each other all the time, and throughout history hundreds of millions of people have died on the battlefield.

This begs the question, what happens to the bodies? 

Like on the beaches of Normandy, thousands of people died. But the beaches, to my knowledge, aren't filled with dead bones and stuff.

So where did they go? Is there a secret service that collects bodies?
gpt
There are special units in militaries whose job it is to collect/clear bodies.

So best case scenario, that unit comes through and properly handled your body.

Middling case scenario is that unit doesn’t find you, and whatever locals attempt to give you a proper burial.

Lower case scenario is you’re just tossed in a hole and covered up like a mass grave.

Worst case scenario is no one ever finds you and your body is left to rot, decay, and he picked apart by scavengers.