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   887篇
  免费   19篇
  2021年   11篇
  2019年   18篇
  2018年   8篇
  2017年   19篇
  2016年   17篇
  2015年   16篇
  2014年   19篇
  2013年   165篇
  2012年   8篇
  2010年   9篇
  2009年   14篇
  2007年   16篇
  2006年   9篇
  2005年   10篇
  2004年   13篇
  2003年   11篇
  2002年   14篇
  2000年   8篇
  1999年   9篇
  1998年   17篇
  1997年   15篇
  1996年   13篇
  1995年   7篇
  1994年   21篇
  1993年   23篇
  1992年   16篇
  1991年   21篇
  1990年   15篇
  1989年   28篇
  1988年   25篇
  1987年   23篇
  1986年   26篇
  1985年   19篇
  1984年   11篇
  1983年   10篇
  1982年   15篇
  1981年   14篇
  1980年   11篇
  1979年   16篇
  1978年   18篇
  1977年   7篇
  1976年   11篇
  1975年   9篇
  1974年   15篇
  1973年   10篇
  1972年   12篇
  1971年   11篇
  1970年   14篇
  1969年   10篇
  1967年   10篇
排序方式: 共有906条查询结果,搜索用时 0 毫秒
131.
132.
Democratic rule requires, amongst other things, orderly civil-military relations. Zambia's military, with some exceptions, have generally remained under firm civilian control, unlike many forces in the region. Initially the military was based on the British colonial model but during the struggle for independence the force was indigenised. Instead of representing a colonial power, the military came to represent a specific political viewpoint: one party participatory democracy. President Kaunda, the leader of UNIP, was chiefly responsible for the politicisation of the military and ensuring its loyalty to the ruling party. Quasi-military institutions such as the Combined Cadet Force and the Home Guard Unit were useful links between civilian and military personnel. When Frederick Chiluba, leader of the MMD, took over in 1991 he tried to make the military more professional and curb its power over civilian affairs. A defence council and parliamentary regulation were instituted to avoid further military coups.  相似文献   
133.
134.
135.
136.
Many scholars, strategists and pundits contend that the US is in decline. They argue that America's national capabilities are significantly eroding, and that with the rise of important regional powers, its primacy in world affairs is rapidly diminishing as well. Yet America continues to possess significant advantages in critical sectors such as economic size, technology, competitiveness, demography, force size, power projection, military technology, and in the societal capacity to innovate and adapt. This article argues that the nature of material problems has been overstated, and that the US should be able to withstand modest erosion in its relative strength for some time to come without losing its predominant status. Instead, where limits to American primacy do exist, they are as or more likely to be ideational as they are material. The problem inheres as much or more in elite and societal beliefs, policy choices, and political will, as in economic, technological or manpower limitations at home, or the rise of peer competitors abroad.  相似文献   
137.
Policies to counter the threat of weapons of mass destruction (WMD) have, for the most part, been modeled on strategies originally devised to counter the danger of nuclear proliferation. While useful in countering a traditional CBN (chemical/biological/nuclear)/WMD threat, current counter-proliferation and non-proliferation regimes are insufficient to meet the challenge of maritime terrorism. Maritime terrorism represents a new category of threat; one that partially overlaps with conventional WMD, but for which – due to the scope and nature of the maritime industry – traditional counter-proliferation policies may be inadequate and even inappropriate. This article outlines the means by which maritime shipping can be used as WMD and discusses the policies implemented to deal with these threats, in light of the challenges presented to traditional conceptualizations of WMD and counter-proliferation strategies.  相似文献   
138.
Many well-established explanations for war suggest that cyber weapons have a greater chance of being used offensively than other kinds of military technologies. This response article introduces a research agenda for the study of cyber war, and offers an example – principal-agent problems in cyber operations – to demonstrate how rigorous theoretical and empirical work may proceed.  相似文献   
139.
Scholarly research and publication in many countries has made the Korean War not only remembered, but also better understood. Material from Russia and China have been especially helpful in adding nuance and detail to now‐dated writing about the war's causes. Much more work needs to be done on Korean politics and the 1952–53 period, but in all the scholarship simply confirms the shared responsibility of all the belligerents ‐ including the Koreans ‐ in starting and continuing the war.  相似文献   
140.
The historiography of the Gallipoli campaign suggests that the Turks were critically short of ammunition for the Dardanelles coastal defences in March 1915. This theme, established by Winston Churchill, became the basis for a widespread belief that the Royal Navy, after its failure to carry the Dardanelles on 18 March 1915, simply needed one more determined naval push to breakthrough the narrows. The presumed consequence was that the Ottoman Empire, with Constantinople under the guns of the Royal Navy, would have withdrawn from the war. Using modern Turkish sources, the author examines the available quantities, placement, and expenditure of ammunition, and challenges the premise that the Turks were desperately short of heavy shells. The author concludes that the Turks had sufficient remaining ammunition to fiercely contest control of the straits.  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