Distinctive Unit Insignia 

DUI

Originally approved for 1st Special Forces 

8 July 1960

Further authorized March 1991 for wear by personnel of the US Army Special Forces Command (Airborne) and its Subordinate Units**

Crossed Arrows

Adapted from Unit Insignia of the

  First Special Service Force

First Special Service Force adapted from Indian Scouts of the late 1800s and disbanded 1922

Fighting Knife

Adapted from the Unit Knife of the 

First Special Service Force

Uniquely designed V 42 Fighting Knife by Case for the First Special Service Force

DE OPPRESSO LIBER

Motto of Special Forces

"To Free the Oppressed"