After the war was declared in December of 2017, it saw a quick end. A swift line of invasions by the NVA into land occupied by the Underground Mafias Army. They were all captured on the same day. This was a shocking blow to the UMA.
After the war, Ehroyals was couped by oharaisbae and the NVA high command. There was several discussions about making the new UMA a puppet state of the NVA, but it failed. After Ehroyals didn't step down as leader of the UMA, a civil war broke out.