When it comes to defense and national security threat monitoring, the value of publicly available information and open-source-intelligence (OSINT) is often overlooked in favor of classified sources. In this industry brief, we explore the complementary role that OSINT can play to traditional forms of intelligence. Learn how the vastness of open-source information can be leveraged to further situational awareness, understand disinformation efforts, uncover violent extremism threats, assess military capability and more.