You don't need Thessalians. That's optional.
If you take Thessalians, then you must take 1-2.
If you're going to make the point that this could have been written in the army lists as "Thessalian Cavalry 0-2" and it would have been exactly the same in practice, that's true for standard triumph. But if you click on "Showing troop options for ... Grand Triumph (3 main army commands)" you'll see it would be completely different -- 0-2 would have become 0-6, but 1-2 becomes 3-6.
greedo wrote: ↑Mon Feb 22, 2021 6:42 pm
And in the required section, everything except heavy foot has a min of 0. Should all of these go in the optional section?
"Optional Contingent" is not the same thing as something with a minimum of 0.
Go take a look at the Yuan in Japan, Java, and S.E. Asia army list.
http://meshwesh.wgcwar.com/armyList/5fb ... f4/explore
That should make clear what the difference is. If you take any North Chinese Subjects, you add all the lines under the Optional Contingent for North Chinese Subjects to your army list. All of them. Yes, some are 0 minimum, that's not the point.
An optional contingent is a group. Maybe a group with one line (rarely, but sometimes, as in your Thessalians example), but a group. You can choose the group, or you can choose not to take that whole group. You CANNOT take two stands of North Chinese Crossbowmen and have 0 North Chinese Spearmen and Halberdiers -- that would be illegal.