θəɹˈoʊ wʌz dʒˈeɪld fɔːɹ ɹᵻfjˈuːzɪŋ tə pˈeɪ ɐ pˈoʊl tˈæks ɔnðə ɡɹˈaʊndz ðætðə mˈʌni mˌaɪt biː jˈuːzd tə pˈeɪ fɚðə mˈɛksɪkən ɐmˈɛɹɪkən wˈɔːɹ, wˌɪtʃ hiː əpˈoʊzd.
Thoreau was jailed for refusing to pay a poll tax on the grounds that the money might be used to pay for the Mexican–American War, which he opposed.