Unfortunately, the Imulsion began to mutate and an early form of Lambency took hold. The infected members of the population were gathered by the COG (Coalition of Ordered Governments) and moved to New Hope where it was hoped a cure could be found. During the start of the Pendulum Wars, many of the Imulsion miners who had taken part in the Gold Rush began contracting a serious illness after extended Imulsion exposure. The beginning the of the Locust Horde started at the New Hope Research Facility. 1.3 The Battle and Eventual Destruction of Halvo Bay.1.2 The Creation of the Lambent and Emergence Day.Any type of negotiation with the Locust failed and would lead into the events of Gears Of War. When the Locust made their appearance known, the event became known as Emergence Day or E-Day. This civil war lasted for an unspecified time but it eventually forced the Locust out from the Hollow and invade the surface (this happened six weeks after the Pendulum Wars ended). While this conflict was happening, the Locust were fighting other Locust that were infected with Imulsion (the Lambent). This war would be known as the Pendulum Wars that lasted for 79 years. These tunnels were spread out throughout the planet while different groups of humanity (COG and UIR) were at war with each other over Imulsion. They originally live a subterranean lifestyle beneath the surface of Sera by underground tunnels (known as the Hollow). The Locust Horde are the main antagonists of the entire Gears of War video game franchise. ~ Chief of the COG Defense Staff, General Bardry Salaman describing the Locusts. We can't even begin to negotiate with them, or work out their objectives, because we just don't know the first damn thing about them.

Gears of war 1 weapons