ðɪ ɪmpˈoːɹtəns ʌvðə kwˈæntlən tə ðə bɹˈɪɾɪʃ sˈɛɾəlmənt æt fˈɔːɹt lˈæŋɡli bɪkˌeɪm ˈɛvɪdənt wɛn hˈʌdsənz bˈeɪ kˈʌmpəni mˈɛn æt ðə fˈɔːɹt dʒˈɔɪnd kwˈæntlən wˈɔːɹɪɚz ɪn ɹᵻpˈɛlɪŋ ɐn ɐtˈæk baɪ ðə jˈuːklɐtˌɔːz ʌv kwˈɑːdɹə ˈaɪlənd ðə vˈɪktɚɹi ʌv kəmbˈaɪnd kwˈæntlən ænd bɹˈɪɾɪʃ fˈoːɹsᵻz hˈɛlpt bɹˈɪŋ ɐn ˈɛnd tə slˈeɪv ɹˈeɪdz ɔnðə lˈoʊɚ fɹˈeɪsɚ baɪ nˈɔːɹðɚn tɹˈaɪbz, ænd ɪz ðɪ ˈoʊnli tˈaɪm bɹˈɪɾɪʃ ænd ɪndˈɪdʒənəs fˈoːɹsᵻz fˈɔːt sˈaɪd baɪ sˈaɪd ɪn bɹˈɪɾɪʃ kəlˈʌmbiə.
The importance of the Kwantlen to the British settlement at Fort Langley became evident when Hudson's Bay Company men at the Fort joined Kwantlen warriors in repelling an attack by the Euclataws of Quadra Island - the victory of combined Kwantlen and British forces helped bring an end to slave raids on the lower Fraser by northern tribes, and is the only time British and Indigenous forces fought side by side in British Columbia.