Fullmetal alchemist Vol.15

The world of Fullmetal Alchemist is styled after the European Industrial Revolution. Set in a fictional universe in which alchemy is one of the most advanced scientific techniques, the story follows two alchemist brothers named Edward and Alphonse Elric, who are searching for the philosopher's stone to restore their bodies after a failed attempt to bring their mother back to life using alchemy.

Volume 15:

The horrors of the Ishbalan campaign occurred years before Ed became a state alchemist, and has serious repercussions, which set the tone for the complicated dealings of present-day state politics. Lieutenant Hawkeye reluctantly tells Ed all the dread details of the role Colonel Mustang and the other state alchemists played in this tragic event.