Fullmetal Alchemist: Brotherhood (2009)

S1E30 The Ishvalan War of Extermination

As Edward listens to Hawkeye recount a haunting chapter from the past, he learns about the young soldiers who were once driven by ideals but ended up carrying out acts of genocide. The grim realities of the Ishvalan battlefield unfold, exposing the deep scars left by the conflict.