首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   240篇
  免费   3篇
  国内免费   6篇
  2021年   5篇
  2020年   5篇
  2019年   12篇
  2018年   5篇
  2017年   12篇
  2016年   12篇
  2015年   13篇
  2014年   18篇
  2013年   141篇
  2012年   5篇
  2011年   2篇
  2010年   5篇
  2000年   2篇
  1998年   3篇
  1997年   1篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1992年   1篇
  1990年   1篇
排序方式: 共有249条查询结果,搜索用时 296 毫秒
221.
India and Pakistan are currently engaged in a competition for escalation dominance. While New Delhi is preparing for a limited conventional campaign against Pakistan, Islamabad is pursuing limited nuclear options to deter India. Together, these trends could increase the likelihood of nuclear conflict. India, for example, might conclude that it can launch an invasion without provoking a nuclear reprisal, while Pakistan might believe that it can employ nuclear weapons without triggering a nuclear exchange. Even if war can be avoided, these trends could eventually compel India to develop its own limited nuclear options in an effort to enhance deterrence and gain coercive leverage over Pakistan.  相似文献   
222.
Defense budgets in Japan have been complicated compromises from numerous inputs ‐ including threat perceptions, domestic industrial/technological base development, support for the bilateral security treaty with the United States and internal bureaucratic politics ‐ but with the fall of the former Soviet Union, the clearest justification for higher spending disappeared. Double‐digit defense spending increases that were common in the 1980s have been replaced by annual increases lower than present inflation rates, resulting in negative real growth in the country's defense budget. Domestic economic problems and consistent government pressures for smaller budgets have further slowed annual growth in total spending and have contributed to lower procurement budgets. As a result, the domestic Japanese defense industry is facing far more constrained conditions from the growth years of a decade before.

Government policymakers are examining Japan's regional security environment as well as its alliance with the United States to determine the appropriate course for the country to take in the coming years. The formal security treaty with the United States is likely to remain a major element of government positions, but other aspects of the country's overall security posture are open to debate. Perceptions of a reduced threat environment are fueling additional pressures for defense budget cuts.

The domestic defense industry seeks means to assure its survival in domestic defense markets in this constrained environment. Expansion into overseas markets to offset declining domestic markets is an option that currently is constrained by policy restrictions on arms exports. Industry is advocating re‐examination of those policies and unlike earlier years, government appears willing to respond positively but cautiously to this lobbying.  相似文献   
223.

Small countries may not be able to afford all force elements (army, navy, air-force) operated by larger countries and certainly cannot afford all sub-elements (aircraft carriers, submarines, etc). This paper provides a framework for a small country to analyse its force structure, examining the influence of objectives, international co-operation, funding and technological constraints, and uncertainty. We analyse when a small country may choose to retain a balanced structure (with each force element) and when it may choose to drop one or more elements. The issues are illustrated with the decision by the New Zealand government over whether to retain a strike aircraft capacity.  相似文献   
224.
EDITOR'S NOTE     
The Nonproliferation Review (NPR) recently interviewed Ambassador Sergio de Queiroz Duarte of Brazil, who presided over the 2005 Seventh Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Ambassador Duarte discussed his views on the outcome of the conference and the future of the treaty. He provided NPR with valuable insights into the outcome of the conference and also shared his thoughts on some of the most pressing issues confronting the NPT today, including the Middle East, nuclear terrorism, elimination of the threat of highly enriched uranium in the civilian nuclear sector, proposals to limit access to the nuclear fuel cycle, nuclear disarmament, and negative security assurances. Blaming the failed conference on a general lack of political commitment among states parties and their unwillingness to negotiate common solutions, Ambassador Duarte stressed that “the conference should face squarely its own failure without my attempting to disguise or sugarcoat the deep differences of view, which must be resolved with courage and determination by the states parties if they want the treaty to remain effective.”?He emphasized that if states fail to act on their overriding interest in upholding the NPT, especially if states parties continue to ignore or disregard their nonproliferation and nuclear disarmament obligations, some states might come to believe that their security interests are no longer served by the treaty. The future prospects of the NPT would then “look dire indeed.”  相似文献   
225.
This article uses a geographic approach to examine one aspect of the nuclear black market: the coordinators who bring buyers and sellers together, and transport goods between them. The most important factor in determining the geographical structure of a proliferation network is the network coordinator's access (or lack thereof) to unique state resources. Coordinators with access to state resources and prerogatives can avoid embedding themselves in hostile countries or relying on commercial infrastructure, often leading to territorially diffuse logistical networks. Coordinators without such access are forced to rely on commercial infrastructure and favorable local political, economic, and social conditions, often resulting in territorially centralized logistical networks. This is illustrated through case studies of Abdul Qadeer Khan's supply networks to Pakistan, Libya, and Iran. The article concludes with some observations about the implications of a geographical approach for understanding nuclear proliferation networks.  相似文献   
226.
SHADOW WARS     
The Secret War with Iran: The 30-Year Clandestine Struggle Against the World's Most Dangerous Terrorist Power, by Ronen Bergman. Free Press, 2008. 432 pages, $28

Fallout: The True Story of the CIA's Secret War on Nuclear Trafficking, by Catherine Collins and Douglas Frantz. Free Press, 2011. 304 pages, $26.

The Twilight War: The Secret History of America's Thirty-Year War with Iran, by David Crist. Penguin Press, 2012. 638 pages, $36.

Israel vs. Iran: The Shadow War, by Yaakov Katz and Yoaz Hendel. Potomac Books Inc., 2012. 254 pages, $30.

Spies Against Armageddon: Inside Israel's Secret Wars, by Dan Raviv. Levant, 2012. 356 pages, $17.

Confront and Conceal: Obama's Secret Wars and Surprising Use of American Power, by David E. Sanger. Crown Publishers, 2012. 476 pages, $28.  相似文献   
227.
Nuclear optimists and pessimists disagree on whether the odds of nuclear war are low or high. This viewpoint assesses the odds of nuclear war over the past sixty-six years, exploring three pathways to nuclear war: an international crisis leading directly to nuclear war, an accident or misperception leading to nuclear escalation or nuclear retaliation against an imaginary attack, and a general conventional war leading to nuclear war. The assessment is based on the application of Bayes's theorem and other statistical reasoning and finds that the expected probability of nuclear war during this historical period was greater than 50 percent. This level of risk is unacceptably high. It is therefore urgent that effective measures be taken to substantially reduce the risk of nuclear war.  相似文献   
228.
ABSTRACT

Since 2002, NATO's territorial missile defense has evoked continuous debates between NATO states and the Russian Federation. Thirteen years have passed without reaching a common denominator. This article provides a comprehensive overview of the historical background of the debate and the technical details of the missile defense system, highlighting its shortcomings and the state of its deployment process. It also contrasts the military-technical and political arguments of both sides, before addressing the applicable norms of international law to highlight violations and the effect of this noncompliance on existing arms control measures.  相似文献   
229.
BUSTING OUT     
This report explores Iranian popular opinion on the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and the determinants of Iranian attitudes. Using data from a 2008 survey of 710 Iranians administered by the University of Maryland's Program on International Policy Attitudes, we find that that a significant minority of Iranians (10 percent in 2006 and 14 percent in 2008) would prefer that Iran withdraw from the NPT. Our statistical analysis shows that Iranians who fear a US attack on Iranian nuclear facilities and distrust the International Atomic Energy Agency are more likely to want to quit the NPT. We therefore argue that those who do not trust other nations are most likely to oppose the NPT.  相似文献   
230.
MONGOLIA     
Formed according to broad principles laid out by the United Nations, nuclear-weapon-free zones (NWFZs) play an important role in promoting nuclear nonproliferation, paralleling and complementing the Treaty on the Non-Proliferation of Nuclear Weapons. But the traditional regional treaty-based path to establishing NWFZs is not open to all states. Owing to various factors, some countries cannot realistically follow the path of states that have established traditional NWFZs. Mongolia, having declared itself a single-state NWFZ in 1992 and gained UN General Assembly recognition of this status in 1998, may provide an example for other countries to follow. This viewpoint presents Mongolia's case as a state seeking to acquire a nontraditional nuclear-weapon-free status despite unfavorable geopolitical circumstances. The case of Mongolia clearly demonstrates that the creation of a credible, single-state NWFZ status is possible, but demands the support and flexibility of both neighboring states and the nuclear weapon states.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号