. "The Orion Arm Treaty Organization (OATO) was formed by treaty in 3003 to address Nall aggression. It is a mutual defence pact between numerous worlds including Sivad. The OATO has its headquarters in Ynos on Sivad. Its ruling body is the OATO Council. Image:Flag of OATO.PNG"@en . . "Orion Arm Treaty Organization"@en . "The Orion Arm Treaty Organization (OATO) was formed by treaty in 3003 to address Nall aggression. It is a mutual defence pact between numerous worlds including Sivad. The OATO has its headquarters in Ynos on Sivad. Its ruling body is the OATO Council. Image:Flag of OATO.PNG"@en .