Lack of oxygen but not lack of ambition, in no man's land but not afraid, firmly guarding the frontier of the motherland. "There is no lack of ambition due to lack of oxygen, and there are no cowards in no man's land" is the slogan of plateau border guards and soldiers. The "no man's land" here refers to a barren area with no population, which is located in an area with high altitude, low oxygen and bad environment. This slogan expresses the spirit of plateau border guards and soldiers who remain strong will and courage in a difficult environment and are not afraid of difficulties and challenges. Lack of oxygen but not lack of ambition, in no man's land but not afraid, firmly guarding the frontier of the motherland.