The poor are always rich in children, and in the dirt and ditches of this street there are groups of them from morning to night, hungry, naked and dirty. Children are the living flowers of the earth, but these had the appearance of flowers that have faded prematurely, because they grew in ground where there was no healthy nourishment.
You must write for children the same way you write for adults, only better.
In war it is necessary to kill as many people as possible -- such is the cynical logic of war. Brutality in a fight is unavoidable; have you seen how cruelly children fight in the streets?