Killing zone plot timeline

The timeline of the killing zone plot is: according to the search of the killing zone raiders,

1, 2055: collapse, the shortage of oil has involved countries all over the world in numerous disputes over already scarce resources. From the limited tactical nuclear attack at the beginning, the war quickly rose to a full-scale nuclear war against all populated areas ... After the nuclear explosion dust settled, people finally realized that in order to survive, we must seek new resources and lifestyles.

2.2060- 1990: With the colonial plan outside the solar system, the natural resources of the earth will be exhausted, and the survival of all mankind will be threatened, so it is imperative to emigrate to other planets. Once a plan is made to migrate to other planets or satellites that can support life. The world's richest government and consortium * * * set up an alliance organization called "UnitedColonialNations Countries" (UCN for short) and began to actively plan the future of mankind.