In 1921, in Chinese Mongolia, the troops of Roman Friederich Nickolaus von Ungern-Sternberg defeated the Chinese garrison and occupied the East Outer Mongolia region of China. As time went on and Ungern-Sternberg's army advanced towards the west of Mongolia, the bell of "death" was increasingly approaching the Capital of the Chinese Special Administrative Region of Chinese Mongolia (West Mongolia), Ulan poer. At this critical moment, the "visitors from outer space" from Yuan Qiao decided to help Chinese Mongolia and dispatched The Yuan Qiao People's Liberation Army to join the Chinese Mongolian troops in the Battle of Ulan poer. Players need to take on the role of the commander of that war, and together with the "visitors from outer space", defend Ulan poer.
A desperate battle is underway. The last city of Chinese Mongolia—Ulan poer is on the brink of collapse. The iron hooves of Roman Friederich Nickolaus von Ungern - Sternberg trample the last homeland. The unyielding people are lying in ambush in the western mountainous areas, using rudimentary weapons and unwavering beliefs to defeat the enemy's elite forces. People are fighting bravely among the ruins of the fallen Reiah Na, reclaiming the lost land. It is not only the defense of the homeland, but also the safeguarding of freedom. For the future of Chinese Mongolia, we are willing to give everything.