The End of the Exposed Warfighter—Cost Asymmetry and Attrition Economics in Modern Combat

Recent conflicts indicate a structural inversion in the economics of warfare. The exposed human warfighter, requiring prolonged training, continuous sustainment, and high replacement cost, now operates at a growing disadvantage relative to low cost, rapidly replaceable machine systems. This paper argues that modern warfare is increasingly governed not by individual skill or platform sophistication, but by logistics, replacement speed, and cost asymmetry under sustained attrition. Using attrition economics and battlefield evidence from the ongoing war in Ukraine, the analysis demonstrates that humans are being displaced from exposed combat roles not primarily by ethical preference, policy choice, or doctrinal failure, but by binding logistical and regeneration constraints. As low cost systems absorb risk at scale, the human role shifts away from the highest-attrition layer toward remote command, supervision, and coordination, while machines assume primacy at the point of contact. This transition is observable in current conflicts and reflects a reversal in the cost structure that has historically defined military effectiveness, rendering the exposed human warfighter economically non-viable under sustained attrition.