Ehrenfest-Ultimaborea

The Ehrenfest-Ultimaborean Diarchy or simply Ehrenfest-Ultimaborea was a short-lived successor state to the Republic of Ultimaborea after the Ultimaborean remnant left after the secessions of Laterano, Callania, and Ehrenfest was annexed by Ehrenfest. Ultimaborea seceded shortly after the nation was vassalized by Occidentalis, disagreeing with the decision.