 In early 1969, 3rd Battalion 3rd Marines was sent south of the DMZ for several months to join Task Force Yankee in Operation Taylor Common near An Hoa. This three-month operation focused on destroying the primary base for PAVN forces operating across several provinces and 3rd Battalion was awarded a Navy Unit Commendation for its actions during the operation. Ten Marines from 3rd Battalion were killed during the operation (out of 183 total US fatalities), and American forces captured numerous quantities of PAVN supplies. One Marine, Lance Corporal (LCPL) William R. Prom, was posthumously awarded the Medal of Honor for gallantry during Taylor Common.
