There is a scene shown in parts throughout the film in which a group of Jews(men, women, and children) is in a long(possibly a mile or more) trench in a forest and there are Nazi's with machine guns standing above the trench. We ultimately see the Nazi's fire the guns but not the impact. Eichmann describes it when talking to his captors how a child's brains ended up on his uniform. In the flashback, we see him react to this but not any actual gore.
When Eichmann is captured forcibly there is some struggling and threats.
A man is shot to death offscreen. We hear the gunshot and see the body but no blood.
In a flashback we see a woman's body having been hung from a tree. Not very bloody but still disturbing.
A woman has a bloody swastika carved into her chest. Happens offscreen but we see the bloody result.
We see documentary footage from concentration camps that is quite disturbing at the end of the film.
Some fighting but pretty mild.