Battle of the Tobin system

The Battle of the Tobin system occurred in 2000 between the forces of Apophis and Heru-ur. The battle was started after the Tau'ri and Tok'ra sabotaged a potential alliance between the two System Lords. The battle was rather one-sided and led to the death of Heru-ur and the absorption of his fleet into Apophis's. This made Apophis one of the most powerful Goa'uld until his fleet was destroyed a year later during the destruction of the Vorash system.