400th Strategic Missile Squadron emblem.  Approved 25 February 1966.  Replaced 17 November 1994
<a href="https://en.wikipedia.org/wiki/United_States_Army_Institute_of_Heraldry" class="extiw" title="en:United States Army Institute of Heraldry">en:United States Army Institute of Heraldry</a>
1966-02-25
<a rel="nofollow" class="external free" href="http://usmilitarypatches.com/gallery/displayimage.php?pid=9021">http://usmilitarypatches.com/gallery/displayimage.php?pid=9021</a>