Simov refused to take part in the First and Second Balkan Wars, for which he was jailed. He succeeded in escaping, and afterward supported the agitation from the leftist parties against Bulgarian intervention in the First World War. After the war Simov was freed and began working in Gorna Oryahovitza. He took part in the transport strike of 1919. During the 9th of June coup he was in Pleven, arrested and interned in Balgarene.