Flocke, also known as Floch Forster, evolves from a Survey Corps recruit to a pivotal Yeagerist leader. Introduced in Squad Klaus during Shiganshina’s recapture, he survives the battle alongside Hange Zoë and Levi’s team, witnessing his squad’s annihilation—an event that fuels his bitter disdain for outsiders and unshakable faith in Eren Yeager as Eldia’s sole protector. Initially timid, Flocke confesses his terror of dying purposelessly but joins Erwin Smith’s suicidal charge against the Beast Titan, galvanized by the commander’s rhetoric on sacrificial meaning. When Erwin lies mortally wounded, Flocke demands he receive the Titan serum, insisting his merciless pragmatism is vital for humanity’s survival. Levi’s choice to revive Armin Arlert instead fractures Flocke’s trust in the Corps’ leadership, seeding his radicalization. By the Liberio raid four years later, Flocke champions ruthless strategies, torching city sectors to cripple enemies and dismissing civilian deaths as unavoidable for Eldia’s future. As a Yeagerist commander, he executes brutal purges against dissenters, demanding absolute allegiance to Eren’s Rumbling. His ideology hardens into a fanatical creed: only total annihilation of external threats can spare Paradis from retribution. In his final stand at the harbor, Flocke clings to a boat for two days, battered and bleeding, to block the Alliance from intercepting Eren. Even as Mikasa Ackerman strikes him down, he implores his former allies to desist, gasping that the Rumbling remains Paradis’ last hope. His death crystallizes his arc—from a trembling soldier to a zealot warped by trauma, ideological extremism, and a grim calculus of survival. Flocke’s journey mirrors the corrosive toll of war, his loyalty shifting from Erwin’s memory to Eren’s apocalyptic vision, cementing him as a contentious symbol of sacrifice and moral compromise in a fractured world.