dˈʊɹɹɪŋ ðə spˈænɪʃ ɐmˈɛɹɪkən wˈɔːɹ, kˈænən sˈɜːvd æz ðə luːtˈɛnənt kˈɜːnəl ˈaɪ.ˈiː., sˈɛkəndɪŋkəmˈænd ʌvðə sˈɛkənd juːnˈaɪɾᵻd stˈeɪts vˌɑːləntˈɪɹ kˈævəlɹi.
During the Spanish–American War, Cannon served as the lieutenant colonel (i.e., second-in-command) of the 2nd United States Volunteer Cavalry.