ALBERT

Description: In 1989, the Marine Corps formally adopted a theory of conflict called maneuver warfare and described its tenets in a short but revolutionary doctrinal manual simply titled Warfighting. This conflict theory evolved along two paths that wound their way through the landscape of the late Cold War period before coming together in 1989. A New Conception of War traces this story from the post–Vietnam War years to the present. The first path was forged by U.S. Air Force colonel John R. Boyd, whose ideas on warfare were shaped by a military career during the height of the Cold War and his own passion for challenging conventional wisdom in the search for new and useful ideas. The second path was navigated by many thinkers within the Marine Corps during a period of institutional soul-searching after Vietnam, driven by the Corps’ imperative to adapt to the exigencies of the day and thus remain a useful contributor to national defense. Drawing on new and previously unpublished material from the major players of this period, including a full transcript of Boyd’s “Patterns of Conflict” lecture, A New Conception of War captures a period of remarkable intellectual ferment within the Marine Corps and the development of a unique conceptual framework for warfighting that continues to inspire Marines today.

Description: The assimilation and regeneration of dissolved inorganic nitrogen, and the concentration of N2O, was investigated at stations located in the NW European shelf sea during June/July 2011. These observational measurements within the photic zone demonstrated the simultaneous regeneration and assimilation of NH4+, NO2- and NO3-. NH4+ was assimilated at 1.82-49.12 nmol N/L/h and regenerated at 3.46-14.60 nmol N/L/h; NO2- was assimilated at 0-2.08 nmol N/L/h and regenerated at 0.01-1.85 nmol N/L/h; NO3-was assimilated at 0.67-18.75 nmol N/L/h and regenerated at 0.05-28.97 nmol N/L/h. Observations implied that these processes were closely coupled at the regional scale and that nitrogen recycling played an important role in sustaining phytoplankton growth during the summer. The [N2O], measured in water column profiles, was 10.13 ± 1.11 nmol/L and did not strongly diverge from atmospheric equilibrium indicating that sampled marine regions were neither a strong source nor sink of N2O to the atmosphere. Multivariate analysis of data describing water column biogeochemistry and its links to N-cycling activity failed to explain the observed variance in rates of N-regeneration and N-assimilation, possibly due to the limited number of process rate observations. In the surface waters of five further stations, ocean acidification (OA) bioassay experiments were conducted to investigate the response of NH4+ oxidising and regenerating organisms to simulated OA conditions, including the implications for [N2O]. Multivariate analysis was undertaken which considered the complete bioassay data set of measured variables describing changes in N-regeneration rate, [N2O] and the biogeochemical composition of seawater. While anticipating biogeochemical differences between locations, we aimed to test the hypothesis that the underlying mechanism through which pelagic N-regeneration responded to simulated OA conditions was independent of location. Our objective was to develop a mechanistic understanding of how NH4+ regeneration, NH4+ oxidation and N2O production responded to OA. Results indicated that N-regeneration process responses to OA treatments were location specific; no mechanistic understanding of how N-regeneration processes respond to OA in the surface ocean of the NW European shelf sea could be developed.