The many tribes of the Crimson Fox reside within the oasis which forms the Principality of Omar, which has formed a long and stable alliance with the Kingdom of Veck due to their supplementary natural resources. Merchant caravans continuously travel between the 2 countries and have become targets for the desert's Sand Lizard Tribe. In order to protect the merchants, the Kingdom of Veck has stationed the Yggdrasill Arche-Soldier Squad within the Principality of Omar to assist the Crimson Fox in resisting invasion from the "Burning Sands" led by Mosa, leader of the Sand Lizards. In order to adapt to the highly diverse environments of the desert and oasis, their Archocore mobile armors have enhanced mechanisms that protect against dust; their armors are camoflouged based on oasis flora in order to better blend in with the region.