ok, a little background on the Chimu (forgot how to do the little apostrophe

);
They maintained the largest and most important political system before the Inca, and were the first to actually have a dedicated diplomat class for various tribal relations called
lamdedela which was a sub sect of the
sicliudadela or castes.
They had a 4 lvl hierarchal system with elite ruling over administrative centers, usually at walled cities called
ciudadels at the main city of Chan Chan. They expanded by conquest from Piura to Casma and Paramonga in the south. Their state began to take shape in the early part of the 14th century, probably from an increase in population.
In approximately 1465-70, they were conquered by Pachy and his son Topi, with the Inca absorbing much of the Chimu culture, political organizations, irrigation systems and road engineering.
Chimu culture was based primarily on agriculture, aided by immense works of irrigation engineering and canal systems. Additionally, they did excellent work in textiles, as well as gold, silver, and copper smithing. The Chimu language was known as Yunca (Yunga), Mochica (or Moche) is now extinct, and was very different and distinctive from that of the Inca.
This link for images;
https://www.google.com/search?q=chimu+warriors&hl=en&qscrl=1&rlz=1T4ADFA_enUS473US476&tbm=isch&tbo=u&source=univ&sa=X&ei=kVoUUqLoCOr7yAH30YDADA&ved=0CC4QsAQ&biw=1600&bih=718
There elite warriors were called
Uncu, and they used highly ornate axes called
Tuma in battle. There ceremonial axes were called
Tumi, and were usually great works of art.
So, IMO (lol), I would recommend for favorite civics MON/Caste.
UA; Diplo bonus
UB; Ciudadels -not quite sure how to work this one. Maybe a bonus towards gold?
UU; Uncu- Axeman of some type. Bonus when grouped.
I'd probably call them ORG/IND given the info. Let me know what you think.
Drak.