eli5, what happens to the dead bodies in a battlefield

Question

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?

In: 14

Answer 1

Or in cases of mass killings like in Ukraine and WW2 Germany, mass Graves will be dug and bodies piled in.