The Frontier Expeditionary Force (FEF) was created by the UPF in response to Sathar raids in the White Light system. Officially part of Strike Force NOVA, the UPF wanted a far-ranging force to supplement local system militias. Accordingly, the FEF's standing orders allow it to deploy at will throughout the most remote regions of Frontier space and into unexplored systems if Sathar activity is suspected. The UPF can currently spare only one frigate and a pair of assault scouts for the FEF but has convinced the Clarion Royal Marines to temporarily attach the assault scout CMS Osprey to the FEF.