What does the effect of imagery of war leave on the reader?

A feeling of fear, remorse and at times hope

Explanation:

I believe it fully depends on the book but in general, books that have an imagery on war usually make you feel like you were in these situations of untimely deaths. The feeling of fear could  be something the reader may feel because of the often well description of the tremendous sight seen by the character.

Remorse could be felt most likely if a character dies because of this or is in someway harmed. Hope is another effect as the reader would most likely have hope for the survival of their hero, and for them to achieve their goal.

to inform readers about the ways young people improve the world.