What Civil War regiment adopted a motto that later became the official motto of the United States?
125th Pennsylvania Infantry:  It selected the motto In God We Trust. In God We Trust: "In God We Trust" is the official motto of the United States. In God We Trust:  It was adopted as the nation's motto in 1956 as an alternative or replacement to the unofficial motto of "E pluribus unum", which was adopted when the Great Seal of the United States was created and adopted in 1782.
i don't know