On January 1st, 2015, Five regions of the globe, Central and South America, the Baltic and Northern Russia, the Eastern Mediterranean, Central Africa, and China, are engulfed in light. When the light fades, the regions have been replaced by nation blocs from alternate 2015s, all of which possess roughly current-level tech. Each bloc is from a different universe, but within blocs, everyone is familiar with one another (if not friendly). All military personnel and equipment that were either outside the ISOT zone (in the case of the ISOTed nations), or in a replaced area (in the case of OTL nations that weren't completely replaced) are returned to their home nation.
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In the Americas, the US finds to it's displeasure that the border has shifted north, with Los Angeles and San Antonio becoming border cities. To the south, the Christian Spanish Mexican Republic has been replaced by a much stronger, richer, and higher-populated Pagan Nahuatl
Mexican Empire ("Aztecs", cactus-green). Although they managed to westernize without too much issue, thanks to the Europeans that first contacted them, the Portuguese, being more than happy to trade horses and and tech for gold, they quickly came to dislike the west during their many colonial wars with Castile. Their northern Border, now shared with the US, was broken into five heavily-militarized Marches named after the northern tribes that once garrisoned them; Wichita (eastmost), Shoshone (center-east), Navajo (centermost), Apache (center-west), and Serrano (westmost). These marches guarded the northern border against three of the four biggest enemies in the Americas; the Republic of California (Spanish) and the Empire of Louisiana (French), and the farther-off naval threat of the Federal Republic of Columbia (English).
To the South, the
Muisca (gold) rule over what used to be Columbia in our world, and what was once western New Granada in theirs. After the Mexica and Tawantinsuyu had westernized and marshaled their forces, they attempted to dislodge the Castilians from the new world. While they failed to capture California, they did managed to seize the less-developed half of new Granada, which they broke into three parts. One went to the Mexica, one went to Tawantinsuyu, and the third part, they gave to the beleaguered Muisca, who had managed to hold out despite being surrounded by the Castilians. After centuries of being propped up as a buffer by their bigger neighbors, slowly de-Christianizing and de-Hispanizing their shrinking Castilian minority, they stand as both a proud secondary power, and the world's best fence between the neighboring Mexica and Tawantinsuyu.
Beyond them lay the
Tawantinsuyu ("Incan", sky-blue) Empire. Unlike the Mexica, they were forced to adopt western ideas and technology through skirmishes and conflict with the Viceroyalty of New Granada. After the 1550s, they became fast-friends with the Mexica, coordinating to fight the Castilians, Portuguese, and Bretons. Exceptional mountain-fighters, they've never managed to inflict long-lasting military defeats on their perennial enemies, the Brazilians, outside of the Andean theaters, instead having to rely Muiscan auxiliaries, who are much more accomplished jungle-fighters.
Slightly obsessed with bureaucratic procedure, they redraw their internal administrative zones every few decades.
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In Europe, Northern Poland and the Baltic states have vanished, in place of the militant, German-speaking
Baltic Kingdom (Prussian blue). In their universe, when the Teutonic Order and it's two subordinate orders, the Livonian and Lithuanian Orders, became protestant, they formed into three duchies (Prussia, Livonia, and North Lithuania), all under the rule of the Brandenburg-Ansbach branch of the House of Hohenzollern. A few decades and a bad war with Poland and "South" Lithuania later, all three duchies were held by a single man, Frederick von Hohenzollern, Duke of Prussia. He proceeded to unite the three Teutonic duchies into the Baltic Kingdom. Now, in 2015, thought the country is a Constitutional Monarchy not dissimilar to the UK, a Hohenzollern King still sits in Konigsberg, dreaming of uniting the Holy Roman Empire into a German State…
In what was once Northern Russia now sits the
Republic of Novgorod (tan). Buoyed by the Baltic Kingdom, Novgorod resisted continued attempts by Muscovy to unite into a Russian state. Once a powerful Merchant Republic, the position of Merchants and Capitalists has degraded immensely at ongoing conflict with the Hansa turned Novgorod and her allies further and further from concepts such as Corporate Capitalism and Free Trade in disgust, so much so that within all three of the states in this ISOT block, such concepts are regarded roughly the same as Communism is in the US.
To the north sits the
Republic of Karelia (ice blue), a Finnic state. They've been off-and-on vassals of Novgorod in the past, the two are currently close allies. Their western border, which they shared with the Empire of Sweden, is heavily militarized; the foul Swedes may have conquered their Finnish brothers, but Karelia will not fall! Also, surprisingly well off, economically.
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In the Mediterranean, the last children of Rome sit ill-at-ease. In a world where Islam never existed, the Eastern Roman Empire eventually collapsed, consolidating itself into four smaller states;
The Empire of Hellas (Purple, Capital: Constantinople), the
Empire of Anatolia (blue-grey, Capital: Amaseia), the
Empire of Syria (pale-rose, Capital: Antioch), and the
Empire of Egypt (wine-red, Capital: Alexandria). While the four Greek Empires used to fight, they now are semi-united in a more militarized version of the EU against the Persians. The eastern border of Syria is a nigh-impassable fortress, with the armies of four major states investing heavily to make sure not even a grain of sand can cross without them knowing.
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In Africa, the
Kongolese Hegemony (electric blue) reigns supreme. Their's was a world entirely different from ours, were northern Europe never left the Iron Age until the Kongolese discovered them. In their 2015, they were the colonial masters of Europe and South America, although they were fighting major insurgencies in their former colonies.
Along with them came
Azande (orange) and
Mdebe (dark green). Mdebe was a major economic and colonial power, despite it's size (roughly equivalent to the OTL United Provinces), and still remains a significant economic power, although their colonies broke away decades ago. Azande was an intermediate power that until recently served as a buffer for the Kongolese against nomads from the North. They're still in the Kongolese sphere, and resent it.
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In China, everything has gone to hell. Previously ruled by a Manchu dynasty, the Mandate of Heaven decided that the northern savages were no longer worthy to rule. When the Emperor died without a heir in the late 1980s, China quickly collapsed into another warring states period. Now, eight factions vie for the Dragon Throne, while three more (discernible by their white outlines) attempt to go their separate ways, leaving the Chinese behind forever.
Manchuria (pale green) was the former ruler of China. In the decades since, a Manchu nationalist movement has taken control, seeking to separate from China entirely.
Yan China (honey-yellow) is the faction backed by the Empire of Japan. They currently hold Beijing.
The CCP (pink) is the communist faction, currently occupying what used to be the Chinese-Soviet border. Due to their extreme unpopularity, they were bankrolled and supplied almost entirely by the Soviets.
Qi China (olive) is a minor inland faction. Although unsupported by any major power, they enjoy almost universal local support.
The Wu Republic (orange) is one of the major factions. Supported by Nazi Germany, they claim to be subservient to the European fascists, but dream or a world ruled by the Chinese Fascist Party from Beijing, completely free of lesser, non-Han barbarians…
The Republic of Min (blue-green) is the faction backed by the United States. Not interested in letting the Communists, Fascists, Theocrats, or Imperialists take control of China, they've invested heavily in the Min.
Yao China (blue) is the Cantonese faction. Self-funded, they're also highly popular among the population. Currently negotiating with the Qi for a temporary alliance.
Shu China (purple) is the faction backed by India. Run by a Hindu theocracy imported from India, they are the only faction less-popular than the CCP.
Hui China (brown) is another theocratic faction, although Muslim rather than Hindu. They're substantially more popular than the Shu, although not so much outside of Qinghai.
Tibet (pale yellow) is trying to leave the Chinese sphere (again). It's not working.
Uyghurstan (pale brown) are the final faction. They too are trying to forge off on their own, but the CCP has other plans.
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