Civilian/International Resources:

• Think Tanks

• News Sites

• Digital Archives/Papers/Publications

• Scholarly Search Engines

• Gray Literature

Think Tanks:

• Armada International – provides unrivalled reporting and analysis regarding defence technology, procurement trends and ongoing operations

• Association of Old Crows - international nonprofit professional organization specializing in electronic warfare, tactical information operations, and associated disciplines

• Foreign Policy Research Institute - nonpartisan policy analysis focused on crucial foreign policy and national security challenges facing the United States

• George C. Marshall European Center for Security Studies - renowned international security and defense studies institute that promotes dialogue and understanding among the nations of North America, Europe and Eurasia

• National Technical Information Center (NTIS) - using knowledge to create new ways of using data to solve problems

• Stockholm International Peace Research Institute (SIPRI) - an independent international institute dedicated to research into conflict, armaments, arms control and disarmament

• The European Union Institute for Security Studies – an EU agency analyzing foreign, security and defense policy issues

News Sites:

• Defense News  - providing the global defense community with the latest news and analysis on programs, policy, business and technology

• Radio Free Europe/Radio Liberty - promotes democratic values and institutions and advances human rights by reporting the news in countries where a free press is banned by the government or not fully established

• Real Clear Defense - created as the place to go for information about military affairs, defense policy, national security, and foreign affairs

Digital Archives/Papers/Publications:

• The Cyber Vault - contains primary-source materials gathered by the National Security Archive across the full range of cyber security issues

• Government White Paper collections - over a thousand government white papers, eBooks, infographics, case studies, and data sheets on topics including: artificial intelligence, cloud computing, cybersecurity, ransomware and more

• Institute for National Strategic Studies (Publications) - established by the Secretary of Defense as a focal point for analysis of critical national security policy and defense strategy issues

• Institute for the Study of War (Research and Publications) - a non-partisan, non-profit, public policy research organization advancing an informed understanding of military affairs to improving the nation’s ability to execute military operations and respond to emerging

• Library of Congress - Digital War and Military Collections – from the digital archive of the largest library in the world, containing millions of books, manuscripts, photographs, newspapers, maps, and recordings

• National Academies: Publications - provide independent, objective advice to inform policy grounded in the expertise of our three academies — the National Academy of Sciences (NAS), National Academy of Engineering (NAE), and National Academy of Medicine (NAM)

• National Consortium for the Study of Terrorism and Responses to Terrorism - providing the highest quality, data-driven research findings on terrorism

• National Defense University Press - informing and educating national security professionals on joint and integrated operations

• NATO Defense College - analyses on current issues concerning the Alliance through research papers, academic reports, analyses, and reports

• NATO LibGuides – topical list of research guides

• NATO Library: NATO Publications – collection of official publications, journals, analyses, and reports

• Rand Reports - a nonprofit institution that helps improve policy and decision-making through research and analysis

Search Engines:

• Google Scholar - indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines

• JSTOR – Open Access – search across open access journals, books, research reports and more

Gray literature:

What is “gray literature”?  According to The Fourth International Conference on Grey Literature in 1999, it is "That which is produced on all levels of government, academics, business and industry in print and electronic formats, but which is not controlled by commercial publishers." 

These sources are more difficult to search as a group, and may be more difficult to validate, but may contain excellent information in addition to those documents from more traditional sources.  Here are a few links to get you started:

• Guide to "Gray Literature"

• Search gray literature from NGO sites (Non-Governmental Organizations – powered by Google)

• Search gray literature from IGO sites (Inter-Governmental Organizations – powered by Google)

• OpenGrey (European gray literature)

• Finding gray literature