In March 1921, during the early stages of the Mongolian Revolution of 1921, a Mongolian guerrilla army led by Damdin Sükhbaatar as Supreme Commander launched an offensive at the Chinese garrison at Kyakhta Maimaicheng (Altanbulag, Selenge). The offensive followed a failed attempt by the Mongolian People's Party central committee to reach an ultimatum with Chinese troops. Despite Sükhbaatar's 400-man army being heavily outnumbered by the Chinese, he led his troops to victory in taking the town. This event is considered to be the date that gave birth to the modern Mongolian Armed Forces and the preceding Mongolian People's Army.