Earth-92

Earth-92 is a universe very similiar to Earth-616 up in till World War II, where Captain America (Steven Rogers) sacrificed himself to stop an missile from hitting the U.S. and push his sidekick James "Bucky" Barnes off the missile into the frozen waters below. 20 years after the war the alien race known as the Kree arrived on Earth and declared that it was now under its control.

World War II
The wars main history is the same in till Captain America sacrificed his life to save his sidekick James "Bucky" Barnes and the U.S. from a nuclear missile launched by the Red Skull.

The Kree War
In 1963 earth was invaded by an alien race known as the Kree, whom soon after arriving declared war on earth. The war last began April 3rd, 1963 and ended in August 14th, 1967 after the Kree destroyed the earth's strongest nation of Wakanda. The Kree upon winning the war decide to show mercy however by only punishing those who were directly involved in the rebellion against the Kree. The human who were viewed innocent were given basic rights, but those who had certain physical, mental, and genetic characteristics were forced to enlist in the Kree army.