ðə lˈɔst bɐtˈæliən ɪz ɐ nˈaɪntiːnhˈʌndɹɪd nˈaɪntiːn ɐmˈɛɹɪkən sˈaɪlənt wˈɔːɹ fˈɪlm ɐbˌaʊt jˈuːnɪts ʌvðə sˈɛvənti sˈɛvənθ ˈɪnfəntɹi dᵻvˈɪʒən ðə "lˈɔst bɐtˈæliən"pˈɛnɪtɹˌeɪɾɪŋ dˈiːp ˌɪntʊ ðɪ ˈɑːɹɡɑːn fˈɔːɹɪst ʌv fɹˈæns dˈʊɹɹɪŋ wˈɜːld wˈɔːɹ ˈaɪ.
The Lost Battalion is a 1919 American silent war film about units of the 77th Infantry Division (the "Lost Battalion") penetrating deep into the Argonne Forest of France during World War I.