The Koslovics were supporters of the Communist hardliner Vladimir Koslov. They sought Communism and the elimination of corporate and capitalist influence, particularly in orbital facilities and offworld colonies in the universe. This culminated in the Interplanetary War, during which they were systematically destroyed by the UNSC. They formally surrendered to the UNSC in 2170 with the Callisto Treaty.
As multinational entities like the United Nations spread capitalism across newly-colonized territories in the Sol system, the year 2160 saw a rebirth of socialism with largely the same goals as its old nineteenth and twentieth-century advocates. The Koslovics, a group of revolutionaries began orchestrating attacks against their opponents on the far-right, the Jovian-based fascist Frieden, followed by a bloody struggle in South America during the Rain Forest Wars, and ending with a last stand on Mars during the Argyre Planitia Campaign where UN Space Command infantry spearheaded a decisive, fatal blow to their encampments.