The GEATHJERK Federation ('Guild of Evil Aliens Terrorizing Humans with Jiggawatt bombs, Energy beams, Ray guns, and Killer lasers") is an alien terrorist organization, and the main antagonists in The Wonderful 101.
The GEATHJERK Federation Supreme Armada first appeared on Earth 40 years ago, attacking from out of nowhere. Nobody knew their motives, and they made little attampt to directly contact Humans. Despite the fact that Earth's technology was far behind the GEATHJERK, Earth managed to pull itself together and repel the enemy forces. This battle became known as Earth Defense War I.
The enemy then resurfaced 20 years later. The ensuing battle became known as Earth Defense War II, and it became the first campaign for the “CENTINELS Planetary Secret Service,” the organization that the Wonderful 101 belong to. The attack 40 years ago turned out to have been a mere reconnaissance mission, as this time, the GEATHJERK invaded with full force. Their power was so overwhelming, in fact, that nearly half of the entire planet fell into the enemy’s vile clutches. But yet again, mankind managed to send the invading army back home through a desperate struggle that combined the efforts of the Gaia Defense Army and the CENTINELS. After The GEATHJERK Federation Leader, Jergingha is destroyed, The GEATHJERK Armada ships was obliterated as the Wonderful Ones watches the sky.
The history of the GEATHJERK is told by Jergingha, during the final boss battle:
The GEATHJERK come from 1500 years into the future, 100 years ago in their time, The Greater Galactic Coalition, an armada that rivals the GEATHJERK, was founded by Humans, which inhabited the planet known by the GEATHJERK as Chi-Q. Their technologies were greatly advanaced compared to the GEATHJERK, and using a futuristic technology of unmatched power (which bears a resemblance to the Wondermasks created by the CENTINELs), they marched into Jergingha's homeworld and began to attack with full force. Without the power to stop them, Jergingha's race fell, as did many other races, such as the homes of Vijounne, Heyourgah, Laambo, Walltha, Wanna, and Gimme, all at the hands of the Greater Galactic Coalition.
Fueled by their anger, hatred, thirst for vengeance, and in an effort to save their homes, Jergingha and the other 6 surviving victims of the Greater Galactic Coalition's attacks became the founders of The GEATHJERK Federation, whose goal was to restore galactic peace. By using time-traveling technology, Jergingha lead his entire armada to the past, in order to destroy humanity in an attempt to rewrite history and therefore, prevent the Greater Galactic Coalition from ever being founded.