GlobalSecurity.org is an American independent, nonpartisan, nonprofit organization that serves as a think tank, and research and consultancy group.

The site is focused on national and international security issues;[1] military analysis, systems, and strategies;[2][3] intelligence matters;[4][5] and space policy.

[12] The website's target audience includes journalists, policy-makers, scholars, political scientists, military and defense personnel, and the public.

[13][11] It supplies background information and developing news stories,[14] providing online analysis and articles that analyze what are sometimes little-discussed topics[11] in categories that include WMDs, military and defense, security and cybersecurity, intelligence, and space technology.

[18] In his 2004 book Plan of Attack, about the behind-the-scenes decision-making that led the Bush administration to invade Iraq, Bob Woodward called the website "an invaluable resource on military, intelligence and national security matters".