The game does not specifically mention when UNATCO was formed, however, the player learns that UNATCO has in fact been in existence for many years. UNATCO's questionable acts are due to the fact that UNATCO is actually a branch of a larger conspiracy, Majestic 12, which is using UNATCO to take over the world. UNATCO is described as 'the world's first ever policemen' UNATCO plays a key role in the storyline of Deus Ex, since they responsible for many evil acts including the dispersal of biological warfare agents against the general population, and military suppression of any peaceful or military resistance to UNATCO member governments.
UNATCO are depicted in Deus Ex as a peacekeeping, anti-terrorist organization established to deal with the growing problem of international terrorism. The United Nations Anti-terrorist Coalition Organization (UNATCO) is a major antagonist organization in Deus Ex.
