The <i>Defender II</i> air defense system shown at the AUSA '85 exhibition in Washington, D.C., with a GE 225 gun system and lour Stinger missiles in the ready-to-launch position.
U.S. Army Air Defense Artillery School
1985
<a rel="nofollow" class="external text" href="https://sill-www.army.mil/ada-online/pb-44/_docs/1986/Winter/winter%201986.pdf">Air Defense Prototypes Displayed</a>. // <i>Air Defense Artillery</i>, Winter 1986, p. 58, ISSN 0740-803X.