 Georgi Atsev was born in 1884 in a small village of Oreovec, then part of the Manastir Vilayet of the Ottoman Empire.He worked as a teacher in the Tikveš region and joined the IMARO after the Ilinden-Preobrazhenie Uprising, in which his brothers Mirche and Petar took part as voyvodas.At the beginning, during the winter of 1904, he was a freedom fighter in his brother Peter’s revolutionary band, and later in 1905 he became a leader of his own revolutionary band.