Also known as a unit crest or DUI, a Distinctive Unit Insignia is worn by all Soldiers (except General Officers) in units that have been
authorized to be issued the device. It is worn centered on the shoulder loops of the Army Green Service Uniform (AGSU) and the blue Army Service Uniform (Enlisted only) with the base of the insignia toward the outside shoulder seam. DUIs are not worn on the Dress variations of either uniform, however.
For Enlisted personnel, the insignia is centered on a shoulder loop by placing it an equal distance from the outside shoulder seam to the outside edge of the shoulder-loop button. Officers (except Generals) wearing grade insignia on the shoulder loops center the DUI by placing it an equal distance between the inside edge of the grade insignia and the outside edge of the button.
More guidance on wear of the DUI is found in DA Pamphlet 670-1,
Section 21-22, "Distinctive unit insignia" and 21–3(d) and (e),
"Beret" and
"Garrison Cap," respectively.
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦
The 507th Engineer Battalion is a unit in the Michigan Army National Guard. It has been deployed to Iraq at least two times in the War on Terrorism: from November 2004 to October 2005, the Battalion served with the 20th Engineer Brigade in Iraq , and in 2012 the Battalion suffered a fatality and several casualties while carrying out a route-clearance patrol.
The Institute of Heraldry has no entry for the 507th Engineer Battalion Distinctive Unit Insignia, nor does the U.S. Army Center of Military History have any information regarding the unit’s origins, lineage, or history. Despite this, there are certain aspects of the organization’s history that can be deduced from the images used on the device.
The sea-lion in the center of the 507th Engineer Battalion Distinctive Unit Insignia is used on the seals, flags, and coats of arms of numerous government agencies and organizations in the Philippines and indicates that the Battalion served in that nation or was stationed there at the time this insignia was approved.
A crenelated top of what appears to be a tower suggests the embattled towers of a fortress, the construction of which is a function of Engineers; it also recalls the Engineers’ branch insignia and may indicate service in Germany or Central Europe. The gold, upward-pointing arrow likely denotes participation in an assault landing, while the gold laurel branches are for high achievement. “I Cannot See It” is the unit motto and, absent an explanation or description, stands as one of the most enigmatic Army mottos ever devised.