Securing the Curia Treasury

A great portion of the Curia treasury is stored within the vaults of their banks. Our legate in the other nation informs us that the their ruler intends to have the money secretly moved away from the city to be hidden in a secret location until the war is over. But what, we must ask, should happen if the other nation does not survive the war? Perhaps it would be wise to learn the location of this caravan...