Invasion of Earth

The Invasion of Earth, also known as the Fall of Earth, the Conquest, or the Revolution, was the invasion and occupation of Earth by the Calassian Dominion in the early 21st century CE (1st century AC). It saw the collapse of order across the world, the surrender of Earth's nations and armed forces, and widespread destruction and loss of life.

Background
Earth was probably discovered by the Calassians in 1920, when it was included in an imperial survey of planets suitable for colonization. As per the Edict of Restraint, the planet was given a hundred years to resolve its problems without extraterrestrial intervention. During this time, the Calassians studied Earth extensively, but direct contact was prohibited. By 2020, the situation on Earth had not improved sufficiently by Calassian standards, and intervention was deemed necessary. Next was to determine how the operation would be carried out, and by whom. Various interests and organizations vied for the privilege of conquering the planet. Ultimately, the mandate was awarded to no single group, but shared among several groups and individuals, all under imperial supervision. Such a process had worked on other planets in the past: it shifted the burden of cost to private interests, while simultaneously preventing any one interest from gaining a monopoly at the others' expense. Of course, the intricacies of this system were lost on the locals, who perceived their conquerors as monolithic and single-minded.

Ultimatum
Prior to the start of the invasion, an ultimatum was drafted. Its contents were by and large identical to the standard ultimatum, although some portions were altered to target Earth more specifically. In a rather verbose and condescending way, the ultimatum briefly explained who the Calassians were, their beliefs and laws, and the fact that they had been studying Earth for some time. It then lamented how society on Earth had not progressed as hoped, and that direct intervention was necessary to right its course to a proper female-dominated society. The divine Calassians, so the ultimatum claimed, had the power to erase Earth in an instant, or destroy it in any number of ways. Instead, they opted to reform Earth, and extend their mercy to those who would accept it. For those who would not, however, their demise would be cruel and unforgiving. The last section was addressed to the people of Earth, urging them to wage revolution now, lest they be destroyed along with their leaders.

The ultimatum was broadcast to every corner of the world via a hijacking of Earth's existing communications systems. Wherever possible, it took the form of a video recording spoken by a Calassian college girl; otherwise, audio recordings and digital texts were used. The message was broadcast in over a dozen languages and printed in over a hundred. It was reissued once per hour for 24 hours, before ceasing entirely.

Reception on Earth was mixed. The leaders and scientists of Earth, while acknowledging that something extremely abnormal had happened, were immediately skeptical of the ultimatum's legitimacy. They strongly considered the possibility that it could have originated from somewhere on Earth, considering that onscreen figures appeared to be nothing more than intensely beautiful humans. Even if its origins were indeed extraterrestrial, they doubted that the Calassians truly possessed the power they claimed. Even so, military forces were readied for a potential conflict, while the world's top experts formed a diplomatic committee to attempt negotiations, just in case the threat turned out to be real. The common people of Earth, meanwhile, gave in to panic and rioting, although no serious attempts at revolution were made as of yet.

By the fifth hour of broadcasting, investigations into its source had yielded no conclusive results. The transmission seemed to defy the laws of physics, persisting on every channel, every wavelength, every medium. The governments of Earth, then entertaining a genuine extraterrestrial origin, publicly expressed a willingness to negotiate with the aliens. However, no response was forthcoming except for the same boilerplate message.

Invasion
The actual invasion commenced in the seventh hour after the first issuance, by which point a majority of the world's population had viewed or heard the ultimatum. A number of portals suddenly opened in the skies above Earth, and the first titanesses landed. These were Calassians who had bought entry to a lottery and won the privilege of drawing first blood. They were each given an allotment of time to treat the comparatively tiny humans of Earth however they saw fit. The titans proceeded to lay waste to vast swathes of land, destroying entire cities under their feet, ending millions of lives, and seeming to take immense pleasure in doing so. They were opposed, ineffectively, by Earth's military forces, who found their weapons incapable of harming the giant girls. Even nuclear weapons, seen a last resort, could not scratch the titans' skin. As night fell in some places and day dawned in others, it was despair, hopelessness, and sheer terror that covered the earth.

A full day after the first message, the broadcasts finally ceased. Now, the first stirs of revolution had begun, as people desperately moved to enact the Calassian reforms to save themselves and humanity. At this point, normal-sized Calassian ground troops began landing to support revolutionaries across the globe and occupy cities both ruined and pristine. Conventional battles were fought and won by the Calassians' superior technology, physique, and intelligence. With millions dead in the first day, the governments of Earth weighed their options. Many opted to surrender; many opted to fight on.