Coat of Arms (CoA) of the 489th Engineer Battalion, part of the United States Army Reserve.
<p>Blazon
Shield
Argent, two piles Gules issuant from dexter and sinister chief meeting in base point each charged with an escallop of the field.
Crest
That for the regiments and separate battalions of the Army Reserve:  On a wreath of the colors Argent and Gules, the Lexington Minute Man Proper.  The statue of the Minute Man, Captain John Parker (H.H. Kitson, sculptor), stands on the common in Lexington, Massachusetts.
Motto
AU FORT DU COMBAT (In The Thick Of The Fight).
</p><p>Symbolism
Shield
Scarlet and white are the colors of the Corps of Engineers.  The pile, an ancient heraldic symbol, represents the function of military Engineers.  The two piles, each charged with an escallop, symbolize the organization’s participation in two campaigns in the Asiatic-Pacific Theater during World War II.
Crest
The crest is that of the United States Army Reserve.
</p><p>Background
</p>
The coat of arms was approved on 1 May 1956.
<bdi><a href="https://en.wikipedia.org/wiki/en:United_States_Army" class="extiw" title="w:en:United States Army"><span title="land service branch of the United States Armed Forces">United States Army</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://tioh.army.mil/Catalog/HeraldryMulti.aspx?CategoryId=9451&amp;grp=2&amp;menu=Uniformed%20Services">489th Engineer Battalion Heraldry</a> from the <a rel="nofollow" class="external text" href="https://tioh.army.mil">U.S. Army Institute of Heraldry Website</a>