Several men are shot by firing squads throughout the film. These scenes are at night, so no blood is seen. A man then goes through and shoots the corpses to make sure they are dead.
The main character remembers his father shooting a fox in a trap. The fox struggles against the trap. The scene cuts away when the father shoots, so we don't see the fox die.
A character puts his gun to a prisoner's forehead and shoots (to prevent the others from torturing him first). The gunshot is not heard, and no blood is shown.
A man being arrested is hit in the back of the head with the butt of a rifle.
A soldier puts his gun in a prisoner's mouth to kill him.
A man on a beach, shot the night before, has blood on his shirt.
A character tries to commit suicide. The character picks up a sharp object by a bathtub. Soon after we see this character unconscious in red-tinted water. No self-harm is seen directly, and (minor SPOILER) the character survives.