It all started in 1978... The Korean Peninsula became hot, and so did the Fulda Gap. Tensions were already becoming high as the DPRK Modernization program threatened the South Korean military which went on the offensive. The dominos fell as the Soviets got involved and so did the Chinese, then did the United States and the rest of NATO and her allies.
Everything in Europe was quiet, until tank waves from the Warsaw Pact bulldozed over West Berlin as the NATO forces gave a stiff resistance but ultimately fell. West Germany, France, Italy, Netherlands, all fell under the Soviet Armored might, but at a steep cost. As Europe fell and the British Isles again being the last lifeboat of Democracy in Europe, NORAD had what one might call, a miss input. The screens rang red as the personnel were panicking and the use of Nuclear Retaliation has be authorized, but none of them knew it was a storm that tricked their sensors.
With a sudden nuclear attack from NATO, the Soviet Union returned the favor by unleashing the entirety of it's nuclear arsenal, NATO did the same. One by one, every major city became nothing but ash. What's left of NATO, pulled it's resources together to make a portal to transport Humanity as scientists estimated that a new Ice Age would be arriving soon.
In a new world, with 600,000 military personnel and only 5,000 civilians, the United States must reform and rebuild in this new and unknown world. 6 years of grueling hell, and now they must deal with the local aliens that inhabit this world, while violently inserting itself into their geopolitical matters.
