Kammala wannan jumla: A watan Yuni na 1944, "Bangor" ya shiga cikin Operation Neptune - ɓangaren jirgin ruwa na D-Day saukowa a Normandy. Rundunar Soji ta 9 ta kasance wani ɓangare na Force J, tana share hanyoyin. A lokacin da aka kai hari, Flotilla ya kasance wani ɓangare na Task Force 129, wanda ya tashi daga Portland a daren 24/25 Yuni tare da niyyar
suna kai wa Cherbourg hari. Da karfe 11:55 masu binciken bama-bamai na Unit 1 (na 9th MSF) sun juya zuwa share yankin tallafi na wuta 3, wanda ya biyo baya da jiragen ruwa na rukuni na 1. Yayin da suka shiga yankin sai suka shiga cikin wuta mai tsanani; batura na Jamus sun kasance suna jira har sai sun kasance cikin nesa. Masu hallaka, suna nunawa a gefuna, sun yi hayaki, amma wuta ta abokan gaba ta karu kuma bayan da aka shafe mil uku kawai (rabin nesa da aka yi niyya) an tilasta minesweepers su janye zuwa arewa.