After the capture of Rome, the 169th played a significant role in the seven-month campaign to push the Nazi Army through the Apennines and out of the Po Valley of Northern Italy.

The battalion received the Rome, North Apennines, and the Po Valley campaign streamers as a result of their courageous service in Italy during World War II.

This battalion built hundreds of miles of roads and constructed quarters for thousands of American soldiers throughout the Delta region of South Vietnam.

Inactivated 30 Apr 72 Lineage continued as 3rd Bn, 4th Tng Bde, FLW, MO Reactivated as 169th EN BN (Support), FLW, MO Sept 86 CSM/ Assumption Year [1] Description: A silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Per fess enhanced dovetailed of three Argent and Gules, in base a fleur-de-lis flowered of the first.

Crest: The many campaigns in which the 169th participated, during the Vietnam War are recalled by the golden dragon, holding an engineer's divider to symbolize the outstanding construction work the unit accomplished in support of military operations during 1967 and 1968.

The mountains represent the rugged country in which exacting land development projects were completed and also symbolize the regions in Italy where the unit saw action during World War II, specifically the Po Valley, North Apennines and Rome-Arno.

Scarlet denotes courage and recalls three Meritorious Unit Commendations and the Republic of Vietnam Civil Action Honor Medal awarded the 169th in the period 1966 to 1970.