World War I also known as the Color Wars, was an ancient war on Club Penguin, fought between 2006 - 2007. This was a time before armies as they are today, and was fought between unorganised groups of Penguins who simply wore the same color, known as Color Clans. World War I was sparked by the 2006 Sports Party. The party included the release of the red and blue hockey outfits in the Sport Catalog - this led to rivalries between the people who bought the Red jersey and people who bought the blue jersey. The war lasted until early 2007, when the first official armies such as the ACP began gaining popularity.
The war's backgrounds was based on penguin's colors. Penguins would wear a color and fight it out to see who is supreme.
The war started in 2006 during the Sports Party of 2006. These fights would happen in the Dojo, the Stadium, the Town, and other places at the time. Oagalthorp, the ACP founder and legend was seen during the war under the Blues. The wars weren't as organized until a Red came around. His name was Korn. Korn organized the Reds into a organized clan. He would use that to fight against mainly the Blues, which was the second biggest faction of the war. Afterwards, Korn was couped by the Reds. The Reds began to die and so did the other colored clans. There was no winner of the war, but the Reds are normally considered the winner if there was one.
The war had a huge impact. It set the stage for new Clans and new armies. Other color skirmishes would happen throughout Club Penguin, but not as large. There is only one currently known veteran of the wars still in communication with people from the army community, by the name of Pilgrimm. They joined in the war towards the end, however.