The oxygen supply guarantee for high-altitude troops is not only related to the health of officers and soldiers, but also to their combat effectiveness. Two news reports reflecting new changes in oxygen supply support for high-altitude border defense forces reveal two key dimensions of scientific support: precision and accompaniment. Precision assurance pursues the depth of resource efficiency release. The Shenxianwan Border Defense Company, located at an altitude of 5380 meters, has a distributed oxygen supply system that scientifically adjusts the oxygen supply according to personnel, demand, and intensity. Not only that, the company also established oxygen inhalation records for officers and soldiers to guide them in scientific and precise oxygen inhalation. This means that the high-altitude oxygen supply mode has entered the scientific regulation stage of "when to use, how much to use, and why to use" from extensive supply. Accompanying the protection, the breadth of coverage with oxygen protection has been expanded. Individual portable oxygen concentrators allow oxygen to break free from the constraints of "fixed pipelines" and accompany officers and soldiers across snow capped mountains and ice fields. Accompanying the transformation of oxygen security in high-altitude areas marks a shift from static "base based" support to dynamic "networked" coverage, achieving coverage of oxygen security wherever the task extends. One 'deep' and one 'broad' complement each other. Precision is the foundation of accompaniment, enabling limited resources to maximize their effectiveness; Accompanying "is an extension of" precision ", which synchronizes the support capability with the pace of combat readiness tasks. Both point to a central point: modern logistics support must resonate with operational needs at the same frequency, achieving a systematic reshaping from "ensuring survival" to "ensuring victory". The change in the dimension of guarantee power is actually a change in the connotation of winning ability. Every iteration and upgrade of the guarantee method provides solid support for the generation of combat effectiveness. (New Society)