317th Engineer Battalion Unit Crest (By Industry and Honor)

The distinctive unit insignia (DUI) worn by the 317th Engineer Battalion, headquartered at Fort Polk in Leesville, LA, bears the motto "By Industry and Honor." Originally approved in 1943 for the 317th Engineer Combat Battalion and redesignated in 1954, these unit crests are worn on both the Army Class A Uniform (Greens) and Army Service Uniform (ASU).

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