Replying...
Intro. after a millennial war called Armageddon, it entered an era of peace and development. However, the discovery of the emulsion, an energetic liquid, sparked the Pendulum Wars, a conflict over its control. The exploitation of the emulsion also infected the Locust, an underground race, sparking a civil war and prompting Queen Locust to launch an attack on humanity on Emergency Day Marcus Phoenix is arrested and imprisoned in The Slab at the beginning of the story due to a trial for disobeying orders during the Pendulum War to try to save his father, Adam Phoenix

GEAR OF WAR 1

@Javier González