This paper seeks to identify the Critical Technology Events (CTEs) in the development of the Stinger and the Javelin missiles. It is the third paper in a series that, driven by the importance of understanding past military technological successes to today's defense science and technology (S&T) investment and management, examines some of the key factors that have led to meaningful technology generation and ultimate incorporation into current U.S. Army weapons systems. The first paper in the series focused on the Abrams tank.1 The second focused on the Apache helicopter.2 With studies of a complex ground system and a complex air system complete, this paper turns to two technologically advanced infantry weapons, the Stinger and the Javelin. These armaments have different roles in the arsenal, but they are both man-portable, fire-and-forget missiles whose development posed some unique challenges. A fourth and final paper in the series will summarize findings of this report, and the reports on the Abrams and the Apache, and offer recommendations for managing the Army's S&T portfolio.