My nation will have a strong airship program, since after all we don't have the technology for conventional planes, but we'll already have them and they will be primarily filled with helium, since we produce that ourselves. And Kataylabinsk will also be a producer of bulletproof plastic fibers (yay chemistry) that they will use for their airships to make them resistant to flak cannons and such. My particular thoughts, however, are around our ground military. Instead of tanks, I was thinking war elephants, like those used in India, except these would be armored and mounted with some kind of small cannon that shoots thermite rounds to disable enemy tanks. And I was also going to outfit troops with rocket-propelled grenades to deal with enemy armor, since again, we don't have them.