 During 1907, Nikola Andreev was a freedom fighter of the Drama revolutionary band of Mihail Daev.After the Young Turk Revolution he was no longer freedom fighter and started working as a teacher.Until the beginning of the Balkan Wars, he was a leader of a revolutionary band in the region of Smolyan, and later he became a member of a non-combatant support service of the 13th Kukush Battalion of the Macedonian-Adrianopolitan Volunteer Corps.