Great American Evacuation (Square One)

Following the impact of the asteroid Square One, a worldwide famine swept the Earth due to large amounts of ash in the atmosphere, leading to dimmed sunlight around the world. As such, international trade broke down, leading to the Great Collapse, and the United States government was unable to meet the needs of many of its citizens.

After months without basic services, social order broke down in many cities and states as a harsh winter set in, and while the federal government attempted to subdue the American populace with the might of its military, many officers and soldiers had deserted their posts, the American military unable to support them with basic essentials. By this point, most governors and state legislatures were either arrested for rebellion and treason, or were unable to deal with the worsening crisis.

As such, the federal government deemed it necessary to evacuate top government officials to a safe location to ensure the continuity of the American government, which would end up being both the Cheyenne Mountain Complex and the Raven Rock Complex.

Evacuation
On December 25, 2026 at 4:34 PM EST, Air Force One, carrying the President, left Joint Base Andrews. It arrived at around 5:53 PM MST at Peterson Air Force Base. The Vice President, riding Air Force Two, leaving Langley Air Force Base at around 5:02 PM EST, arriving at around 6:09 PM MST. Several members of Congress, including the Speaker of the House, were also evacuated to Cheyenne to assemble an "Emergency Legislature". The Government Continuity Charter (GCC) was signed by the President on January 17, which created a temporary government, the American Provisional State. The GCC was mainly based off the Cold War-era Continuity of Government Plan, however was modified to fit the occasion of an asteroid attack.

Cheyenne was mostly used as a base to gather intelligence and data on the state of the former United States, as well as a base for surviving government officials to coordinate the future plans of the United States. Several important military officials were evacuated to Raven Rock Complex, where the remnants of the Navy, Army, and Air Force were located, coordinating military actions. The two different complexes communicated using the Satellite Communication Array.

Effects
The disconnect between the civilian government and the military government led to both sides refusing orders and suggestions from the other. Within a year, food supplies at Raven Rock had run dry, and the makeshift farms there had not produced enough food to feed its population. A coup occurred, and while some high-ranking loyal officers were evacuated to Cheyenne, Raven Rock fell into disarray as many left it for better conditions.