Movie
Description
Zechs Merquise, born Milliardo Peacecraft, inherited the legacy of the Sanc Kingdom, a pacifist nation obliterated by the United Earth Sphere Alliance. Concealing his identity under the alias "Zechs Merquise" (inspired by the German term for "six"), he infiltrated OZ and rose to become a high-ranking officer alongside Treize Khushrenada. His combat speed during a Pacific base counterterrorism strike earned him the title "Lightning Count," with Treize likening his movements to lightning. As a mobile suit pilot, he matched the Gundam pilots' skill—first battling Heero Yuy's Wing Gundam in a Leo, then mastering advanced units like the Tallgeese and Epyon while conquering the ZERO System’s psychological toll.

Haunted by the destruction of his homeland, he rejected his family’s pacifism yet pursued vengeance, fueling a duality of pride and self-loathing that surfaced when confronted with his birth name. After executing the Alliance officer responsible for Sanc Kingdom’s fall, his loyalty to OZ fractured literally when his mask shattered mid-battle, prompting his defection. He later commanded the White Fang rebellion, deploying the battleship Libra against Earth to compel unity under Relena’s leadership and test his own warrior ethos. His Antarctic duel with Heero ended in defeat, cementing his acceptance of the Gundam pilots' role as peacekeepers and reconciling his identities as soldier and Peacecraft heir.

In *Endless Waltz*, operating under the alias "Wind" as a Preventers agent, he piloted the Tallgeese III—a hybrid of the Tallgeese and Epyon—to thwart the Mariemaia Army’s attempted colony drop on Earth, collaborating with former foes Heero and Noin. His survival after the original Tallgeese’s self-destruction remained ambiguously explained in the novelization. Post-conflict, he married Lucrezia Noin, fathering twins Naina and Milou Peacecraft; Naina resided with Hilde Schbeiker, Milou with Noin. Zechs subsequently disappeared from public life, enabling an impostor, Nix-Deuf Noinheim, to usurp his identity as Mars Federation president—a deception that culminated in Nix-Deuf’s assassination.