fˈɜː tɹˈeɪdɪŋ wɪð fɹˈɛntʃ tɹˈæpɚz bɹˈɔːt pɹəvˈɪʒənz ænd ˌæmjuːnˈɪʃən ænd ðə dɐkˈoʊɾə fˈaʊnd ɪt dˈɪfɪkəlt tə sɚvˈaɪv wɪðˌaʊt ðɪs kˈɑːmɜːs.
Fur trading with French trappers brought provisions and ammunition and the Dakota found it difficult to survive without this commerce.