I thought Sargava was pretty well isolated from Southern Garund, by way of the Jungle of Hungry Trees and Lake of Vanishing Armies.
(Nurvatchta and Droon)
The army has but 1,000 men and women, but some powerful Azlanti siege weaponry the PCs were shoo'd away from. Plus, there's a cache of cold iron colossi buried not to far from the fields...
How would the residents of Freehold react to an Azlanti army marching to request/demand supplies?
The first encounter with the PCs was peaceful, the mostly nonhuman party diplomatically educating the commander and some of his tactical advisers of the current state of Golarion and how things have changed since Earthfall, the rise and fall of Aroden, etc. (They specifically tried to leave out Cheliax in the discussion, which may become significant) Up to date maps were provided, so they have a good idea of the region's layout, and a general political understanding of the Inner Sea.
The scholars are coming... as soon as news gets out that there are living Azlanti in Sargava, there's going to be a flood, regardless of any war that may arise. I imagine Taldor and Cheliax in particular would be interested in the new arrivals, not to mention Pharasmites getting a bit ticked off at the 10,000+ year old humans!
Complicating the issue is their cleric's deity, Acavna (Azlanti goddess of battle and the moon) is gone, so they currently have no access to spells or other divine power. Which god would they likely turn to? Abadar?