The longest-running series, "Stargate SG-1", sets the context having the Milky Way galaxy as a failed state in which Goa'uld System Lords war against each other, due to the death of Ra in the film undermining the existing social structure of the System Lords due to Ra's status as the Supreme System Lord. Goa'uld used superior technology to pose as gods to the human populations who had been deported from Earth to everywhere in the galaxy (with evidence suggesting that most Goa'uld believe their propaganda); these people are kept in poverty, ignorance and slavery. The US Stargate Command represents simultaneously a higher level of civilization and a lower level of technology during conflicts. Only a small portion of stargate addresses do not lead to planets dominated by the Goa'uld.