In this study Major West answers the following questions: Is John Warden's "The Enemy as a System" analogous to the Air Corps Tactical School's (ACTS) industrial web theory of airpower employment? If so, why (given the 50 plus years between development of these theories)? If not, what are the prime sources of divergence? The author first describes both theories using an outline from which they are compared on an "apples to apples" basis. From this analysis, similarities and differences are presented. Next, the author discusses contextual factors affecting development of both theories. A baseline is developed from which factors from both eras are compared. After linking relevant contextual factors of the 1920s-1930s and 1980s-1990s, the author explains why the theories of ACTS and Warden are more similar than different. Finally, implications are drawn from the preceding analysis to address the issue of how airpower theory should be developed.