Editing Tau (section)

==== {{anchor|Water|Water Caste}} Por (Water) ====
The '''Water Caste''' are the emissaries of the Tau. They are diplomats, merchants, and civil servants. The most open-minded Tau can be found among the Water caste, with some even showing individual ambition (but still for the greater good of the Tau Empire). When a new culture is encountered, the Water caste are sent in first to negotiate. If talks break down, the Water caste are withdrawn so that the Fire Caste can start negotiating with pulse weapon fire. Also, unlike their Imperial equivalents in bureaucracy, the [[Administratum]], they are brisk, efficient, and very good at their jobs. No dumping valuable ammo on an uninhabited dust world because no one signed the paperwork not to.

It's a lesser known fact that Pors also run the Tau intelligence and espionage network, and Por'Os and Por'Els from this branch are pretty much Tau Inquisitors except more competent, much saner, and not nearly as good at kicking asses personally. As of the second Damocles Crusade the Imperium has designated the Water caste as a primary threat above any other Tau caste. This is because the Water caste's skill in subterfuge, diplomacy and propaganda has cost the Imperium more worlds and manpower than the Fire and Air caste's military prowess combined. They even managed to totally outplay the Inquisition on its own field, which royally pissed them off, even turning an Inquisitor (O'Va'Dem) to their side, as seen in the novel ''Broken Sword''.

The Air Caste also do a quite a lot of things like leading exploration initiatives like the one that discovered the Kroot empire as it was getting rickrolled by the Orks, and fought for their liberation for 12 years.