Cavalry and Yeomanry BADGES OF THE BRITISH ARMY 1914 ' by F. Wilkinson. This green volume specialises in the badges of the mounted troops of the British Army. Why 1914? - The author fixed that time as he seen this as the period of maximum interest in the cavalry was in the period 1900 - 1914. After WW1 the Cavalry units declined quickily as mechanised transportation replaced the horse.