However, they hadn't been heard of for years, supposedly disappeared. The Global Defense Initiative upkeeps the Blue Zones, keeping them defended and using special technology to keep the Tiberium infestation at bay, while the Brotherhood of Nod takes advantage of the chaos and civil unrest in the Yellow Zones to recruit their forces. The remaining areas are Blue Zones, areas safe from Tiberium infestation and possibly the only salvation for humanity, covering 20% of the planet's surface. These areas are filled with civil unrest and are war-torn and ravaged but cover 50% of the planet's surface.
Yellow Zones are areas infested by Tiberium but they hold most of the world's population. Red Zones are areas rendered inhabitable due to the severe Tiberium infestation and constant Ion storms, covering 20% of the planet's surface. By 2047, Tiberium has spread and infested most of the Earth's surface, causing an ecological catastrophe. This substance was unusual and powerful, yet highly dangerous since it turned anything it touched into Tiberium itself. Not an American user? DescriptionOne day a meteor fell on Earth, spreading a new substance called Tiberium.
