I think he's talking about on page 120 of FM:SLDF under Logistics where it says "To cover other shortfalls, Van Coevorden has resorted to diplomacy with the Illyrian Palatinate and the fledgling Niops Association. In exchange for military aid, these minor Periphery states offer what little support they can."
Which seems to change the whole "Its an isolated outpost, that became a separate political entity after the Star League Civil War," that I recall from earlier fluff.