閣下所問的歌曲是：
"BATTLE HYMN OF THE REPUBLIC"共和戰爭頌！
此曲早在美國南北戰爭時就已普遍被北軍士兵所傳唱。

此曲原文資料如下：
Words: Julia Ward Howe, 1861, alt. This hymn was born dur­ing the Amer­i­can ci­vil war, when Howe vis­it­ed a Un­ion Ar­my camp on the Po­to­mac Riv­er near Wash­ing­ton, D. C. She heard the sol­diers sing­ing the song “John Brown’s Body,” and was tak­en with the strong march­ing beat. She wrote the words the next day:

I awoke in the grey of the morn­ing, and as I lay wait­ing for dawn, the long lines of the de­sired po­em be­gan to en­twine them­selves in my mind, and I said to my­self, “I must get up and write these vers­es, lest I fall asleep and for­get them!” So I sprang out of bed and in the dim­ness found an old stump of a pen, which I re­mem­bered us­ing the day be­fore. I scrawled the vers­es al­most with­out look­ing at the p­aper.

The hymn ap­peared in the At­lant­ic Month­ly in 1862. It was sung at the fun­er­als of Brit­ish states­man Win­ston Church­ill, and Amer­i­can sen­a­tor Rob­ert Ken­ne­dy.

Music: “John Brown’s Bo­dy,” 19th Cen­tu­ry Amer­i­can camp meet­ing tune. John Brown was an Amer­i­can abo­li­tion­ist who led a short lived in­sur­rect­ion to free the slaves, and was hanged for his ef­forts.