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"The Army Goes Rolling Along" is the official Army song. But did you know it had two other names? First Lieutenant Edmund L. Gruber, a descendent of Franz Gruber, the composer of "Silent Night," while stationed in the Philippines in 1908, wrote the “Caisson Song” based on his experience in a Field Artillery Battery. The caisson was an essential piece of equipment because it carried the artillery ammunition. In 1917, John Philip Sousa transformed the song into a march, and the song was renamed “T