For that matter, nobody seems to be getting the 2x bonus to maximum armies allowed from owning more core cities. I have 7 core cities and 100% stability, but can somehow only field 6 armies.
The improvements to Librulstan's postal system have been heralded as a massive success, and made it the envy of the world's postal systems. In addition to affordability and accessability, it is now much quicker and more efficient, with much less mail being lost or misplaced. Where once mail could take months to get from place, now even mail sent from Colorado to the Alaskan border and vice versa will arrive at its destination in under a month. With the sucess of the postal reforms, more internal improvement programs are under way to speed up industrialization and give better weapons to the soldiers, should Librulstan ever need to create a larger standing Army.
Pacific Republic of Librulstan
4 IC into researching the "Revolver" Upgrade
4 IC into 2 Factories in Yukon