All nations find themselves on a new world many panic as the very stars change and day turns to night and night to day.
Americas
The United States attempts to contact its allies finding a world very different and an Americas empty of modern people President Nixon makes a speech of a new manifest destiny of the USA controlling the entirety of the Americas beginning with the settlement of Canada.
With the Lizardmen finding themselves on a world untouched by the grace of the Old Ones the Slann mage priests begin a ritual to convert South America into a replica of Lustria by spreading the jungles of Lustria across the continent.
The people of Aztlan cower in their caves what manner of sorcery could cause the stars to change.
The Ossuary breathes a sigh of relief when the attack doesn't come.
Asia
900,000,000 shambling undead begin to spread across Asia from China.
Archaeons sorcerers advise him of a large presence of undead to the south, Archaeon leads his might horde south for surely the slaying of such a mighty foe would earn the gods favour and break their silence.
The people of Genosis find themselves on a planet whose gravity is to great to enable them to fly instead they send droids to scout the area the area surrounding them is found to be uninhabited though radio signal can be detected.
The Soviet Union attempts to make contact with known nations finding only nations ignorant of the occult it plans to expand east retaking its former land s and to investigate the magic soaked chaos wastes. Initial scouts return bringing all manner of arcane artefacts and more for each scout to return, return possessed spreading the cult of chaos across the Soviet Union.
Japan attempts to contact the home Islands only to find it occupied by a foreign power, its remaining military gears up for an offensive to retake it.
Africa
The Autobots and Decepticon war continues unabated with both sending scouts to the nations they now share the planet with, both are disappointed to find none no anymore then they do.
The Race is slow to react to the change and still discussing what their response should be.
The jungle of Pandora begins to sprawl out down river valleys and towards lakes.
South Africa attempts to contact Capetown only to find the 19th century Draka. Most are appalled by their racist practices and make their disgust known.
The Draka send a ship to the UK for advice on how to react.
Atlantic
Scholars across Westeros notice that the stars have changed though very few outside of academia notice or care with things proceeding as normal with King Robert gravely injuring himself during a boar hunt.
British meteorologists notice a large storm or mist to their west but are simply dismissed as another oddity.
Scholars in Atlantis notice something is amiss when the stars change and fishermen bring reports of a new unknown land to their west. The King orders a scout to be sent.
Pacific
Australia and New Zealand with the threat of an Imperialistic Japan to their north form a new alliance recreating the ANZAC.
Harry Potter from the year 2000 finds his scar hurting for the first time since the death of Voldemort and with Ron Weasley and Hermione Granger quickly make their way to the UK by portkey.
Europe
The powers of Europe quickly discover each other discovering that most of Europe is empty they organise a meeting in Berlin to decide on how to react and for want of a better word a "meet and greet".
All across Europe it is gripped in the coldest winter on record as the new ISOT nations have disrupted the north Atlantic current.
Finding themselves in not the Britain they left but the one from the Wizarding war they quickly meet up with their past selves. After an odd lecturing from "Past" Hermione for meddling with time and flat denials from their future selves it was them they quickly tell them the location of each Horcruxes and begin planning on how to capture them and end the war with minimal casualties
Lord Voldemort detects a massive magical disturbance in South America and sends some of his best Death Eaters to locate it thinking it must have been what caused the ISOTS none return.