The Skirineen sent only two words to the Humans: "We begin." As a stunned human race looked on, several Supernova Warheads hit the moon. The explosive force of the blast was enough to completely destroy a quarter of the moon's surface. The debris that resulted still surrounds the planet Earth.
The Skirineen fleets attacked all other races at the same time. The Quadra Alliance was the strongest of the targets, but they were no match for the Skirineen. The Skirineen precision strike on the ChCh-t homeworld succeeded in capturing the Mother Queen. The ChCh-t warriors launced a failed attempt to rescue her. The Skirineen cut off a piece of the queen and sent it back to the ChCh-t as a warning.
The Maug were overtaken by an unknown Skirineen armada. Their cloaked ships seemed to come out of nowhere. They swiftly destroyed nearly the entire Maug armada. The defeat almost completely crippled the Maug ability to fight in space.
The Cyth were taken out of action by an extremely devious method. The Skirineen secretly sold them special tablets which neutralized the psionic fluid the Cyth use. These tablets rendered many Cyth totally without psionic powers. They were essentially rendered helpless.
The Skirineen space fighters attacked the Re'lu. They filled the atmosphere of the Re'lu planets with a deadly gas that killed large numbers of Lu'ite. The Re'ite were thrown into complete disarry.
The Skirineen found an equally damaging way to attack the Uva Mosk. They bombarded several Uva Mosk worlds with huge pollution bombs. These bombings intimidated the fiercly environmentalist Uva Mosk. Their moral was completely shattered by the Skirineen attacks.
The Tarth were attacked directly. The Skirineen felt that they were worthy of a simple frontal assault. They were able to slowly push the Tarth farther and farther back from their borders. It seemed inevitable that the Tarth would eventually be defeated.
The Skirineen turned out to be too overconfident. They expected the Humans to be frightened and to stay out of the conflict. To the contrary, the attack on the Moon worked up the Humans to an furious rage. They launched attacks and fought with a blind and unheard of fury. When the Uva Mosk began launching a series of guerrilla attacks and the Maug began to provide everyone with new and powerful technologies, the Skirineen were faced with a war they could not win. They were beaten back to their own space and their empire was shattered.