Vos

Vos is one of Cybertron's many city-states. It borders Tarn, presumably close to Iacon's borders.

Transformers: Exodus
Vos had a great rivalry with its neighbor Tarn. To pacify the two states, Vos was made the base of the Cybertronian Air Command. It was neutral in the civil war despite Starscream's support for Megatron, until Shockwave seized control. Engaging in some power politics, Shockwave requested the Air Commanders bomb those areas of Tarn he blamed for sheltering Autobots, before a mysterious missile strike was launched on Vos, eliminating the Air Commanders and Starscream's support. Surviving Seekers became the Aerialbots.