German infantry slaughtering attacking British cavalry, St. Quentin, 27th August 1914.
It would be some time before the words ‘Great War’ would come into use, and in the meantime, various other terms would appear; here, on the reverse, the war is referred to as ‘International War 1914-1915’.
German cavalry slaughtering retreating British infantry (in their smart grey uniforms), St. Quentin, same date.
They liked battering the French, too. Probably also August 1914.