Day of Insect Tide

In 4277, the five permanent members triggered a global technological revolution, which led to the rapid depletion of the earth's resources and the imminence of space immigration. However, the tightening of immigration policies made citizens who had never met the immigration conditions become dissatisfied with the government, and eventually gave birth to international terrorist organizations. In response to this global threat, the new United Nations Army was established. However, no one expected that soon after the establishment of the United Nations Army, its number one threat would change from terrorists to alien Zerg.