Henry Tonks is perhaps better-known for being the drawing master at the Slade School of Art and teacher to the likes of Paul Nash, Stanley Spencer and CRW Nevinson. He also was a surgeon and during the First World War served with the Royal Army Medical Corps. Therefore, Tonks was an apt choice for a commission from the British War Memorials Committee to depict an advanced medical dressing station. The painting captures a scene amid a German offensive in 1918, within which Tonks makes full use of his medical expertise to showcase a wide range of injuries, treatments and field dressings.