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51.
A military cannot hope to improve in wartime if it cannot learn. Ideally, in wartime, formal learning ceases and the application of knowledge begins. But this is optimistic. In 1942, USAAF Eighth Air Force assumed it had the means necessary for victory. In reality, its technique and technology were only potentially – rather than actually – effective. What remained was to create the practice of daylight bombing – to learn. This article (1) recovers a wartime learning process that created new knowledge, (2) tests existing tacit hypotheses in military adaptation research, and (3) offers additional theoretical foundation to explain how knowledge is created in wartime  相似文献   
52.
Given an edge‐distance graph of a set of suppliers and clients, the bottleneck problem is to assign each client to a selected supplier minimizing their maximum distance. We introduce minimum quantity commitments to balance workloads of suppliers, provide the best possible approximation algorithm, and study its generalizations and specializations. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2006  相似文献   
53.
Vietnam was a complex conflict, which historians and political scientists have struggled to understand. Some of the bitterest disputes in the historiography revolve around the US approach to counterinsurgency in Vietnam. Many different facets of the war have received the attention of filmmakers, and an examination of their work suggests new ways of thinking about the conflict. This article considers film portrayals of three phases of the Vietnam War – firstly, the early period of ‘political action’, then the advisory period, and finally the Americanization of the war after 1965. It suggests that by examining the experiences of participants in each of these phases, Vietnam War cinema helps to illustrate the problems that faced various American approaches to counterinsurgency in the conflict. Combined with the importance of films in determining popular perceptions of both historical conflicts and counterinsurgency in general, it suggests that they are worthy subjects of study and critique.  相似文献   
54.
In the post-Cold War strategic environment, Beijing could plausibly have opted for Soviet-style geostrategic competition with Washington, but it has not. Chinese leaders have not thus far, and almost certainly will never, amass thousands of nuclear weapons on hair-trigger alert or deploy significant forces to a network of bases spanning the globe. Nevertheless, the below assessment of China's increasing hard and soft power yields the conclusion that a Chinese challenge to US hegemony cannot be ruled out. The United States must prudently maintain military forces appropriate to facing a potential peer competitor. At the same time, however, Washington must engage in a process of creative diplomacy that simultaneously matches China's soft power and engages seriously with Beijing to create areas of consensus and cooperation.  相似文献   
55.
Russia has consistently opposed US hegemony since the early 1990s. Moscow has sought to create a world overseen by the UN Security Council and several power centres supporting an anti-hegemonic axis. Until recently, Russia's resources have been very limited. Russian opposition therefore was largely conceptual or a work in progress. Russian policy was largely reactive – and non-confrontational. However, the failure of the Russia-US relationship to develop practically has highlighted negative views of US hegemony, and the greater wealth generated through high energy prices is supporting an increasingly active Russian policy.  相似文献   
56.
Counterinsurgency is often characterized by large numbers of small fire-fights interspersed with a few larger battles. Heavy firepower contributes to the outcome of the larger battles but the smaller contacts are often fought by infantry without heavy weapons support. Infantry combat performance in these fire-fights is therefore a key concern. It has been fashionable to discuss soldier combat performance in terms of ‘firers’, ‘non-firers’, and ‘posturers’, but we argue that other factors have a greater impact. We provide a detailed statistical analysis of a selection of combat factors, using combat data collected by the 1st Australian Task Force (1ATF) during the Vietnam War. An accepted measure of soldier lethality is the ‘shots per casualty’ ratio. Using this measure we are now able to describe the combat performance of the Australian infantry section in Vietnam in much greater detail than has hitherto been possible.  相似文献   
57.
The Asia-Pacific is emerging as a critical region in the fight against the proliferation of weapons of mass destruction. The Proliferation Security Initiative (PSI) is an aggressive global strategy designed to interdict the transport of these weapons and associated technologies. However, some observers have suggested that the Asia-Pacific has given the PSI a less than enthusiastic reception. The authors posit a more sanguine view. They caution against taking such a holistic approach to the region. Asia does not speak with one voice when it comes to security, and opposition to the PSI is not as widespread nor deep-rooted as may have been anticipated. In addition, the PSI's informal structure encourages flexibility, enabling states to participate in certain activities while eschewing others that may be technically or politically untenable.  相似文献   
58.
A procurement problem, as formulated by Murty [10], is that of determining how many pieces of equipment units of each of m types are to be purchased and how this equipment is to be distributed among n stations so as to maximize profit, subject to a budget constraint. We have considered a generalization of Murty's procurement problem and developed an approach using duality to exploit the special structure of this problem. By using our dual approach on Murty's original problem, we have been able to solve large problems (1840 integer variables) with very modest computational effort. The main feature of our approach is the idea of using the current evaluation of the dual problem to produce a good feasible solution to the primal problem. In turn, the availability of good feasible solutions to the primal makes it possible to use a very simple subgradient algorithm to solve the dual effectively.  相似文献   
59.
Book reviews     
Encyclopaedia of Modern Air Force Squadrons. By Chris Ashworth. Patrick Stephens, London (1989), ISBN 1-8526-013-6, £19.95

The Future of Sea Power. By Eric Grove. Routledge, London (1990), ISBN 0-415-00482-9, £35.00

Soviet Strategic Interests in the North. By Kirsten Amundsen. Pinter, London (1990), ISBN 0-86187-018-2, £30.00

Soviet Seapower in Northern Waters. Edited by John Skogan and Arne Brundtland. Pinter, London (1990), ISBN 0-86187-038-7, £35.00

Glasnost, Perestroika, and U.S. Defense Spending. By William W. Kaufmann, Brookings Institution, Washington, DC (1990), ISBN 0-8157-4881-7, $8.95

The Educating of Armies. Edited by Michael D. Stephens. Macmillan, London (1989), ISBN 0-333-43447-1, £35.00  相似文献   
60.
A computationally simple method for obtaining confidence bounds for highly reliable coherent systems, based on component tests which experience few or no failures, is given. Binomial and Type I censored exponential failure data are considered. Here unknown component unreliabilities are ordered by weighting factors, which are firstly presumed known then sensitivity of the confidence bounds to these assumed weights is examined and shown to be low.  相似文献   
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