English: The 3d Cavalry's coat of arms, adopted in 1921, has symbolism in each of its parts. The green shield symbolizes the facing color of the mounted rifles uniform, and reflected the universal use of green for rifle regiments. The white cross commemorates the Regiment's first combat: the Battle of Vera Cruz. The green tower symbolizes the capture of Chapultepec Fortress in Mexico City, and uses the color green to signify one of the colors in the Mexican flag. The top section includes the red and yellow symbol of Lorraine that commemorates the Regiment's World War One service. The coat of arms is surmounted by the hunter's horn: the universal symbol for rifle regiments.